| Spiders |
Long-jawed orb weaver spider | | Scientific classification | | | | Families | | See Taxonomy section Download high resolution version (640x865, 145 KB)Long-jawed orb weaver spider from http://www. ...
Genera Leucauge Meta Neophila Tetragnatha The Long-jawed orb weavers or Long jawed spiders constitute the Family Tetragnathidae of the Order Araneae. ...
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ...
Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. ...
Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. ...
Carl Alexander Clerck (1709-22 July 1765) was a Swedish entomologist and arachnologist. ...
Families See Taxonomy section Spiders are invertebrate animals that produce silk, have eight legs and no wings. ...
| Spiders are invertebrate animals that produce silk, have eight legs and no wings. More precisely, a spider is any member of the arachnid order Araneae, an order divided into three sub-orders in newer systems: the Mygalomorphae (the primitive spiders), the Araneomorphae (the modern spiders) and the Mesothelae, which contains the Family Liphistiidae, rarely seen burrowing spiders from Asia. The study of spiders is known as arachnology, although it is often included in the more general term entomology. Invertebrate is a term coined by Jean-Baptiste Lamarck to describe any animal without a spinal column. ...
Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ...
A spider web made by a linyphid spider Spider silk is a fibre secreted by spiders. ...
8 (eight) is the natural number following 7 and preceding 9. ...
Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. ...
Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ...
Families Antrodiaetidae (folding trapdoor spider) Atypidae (atypical tarantula) Ctenizidae (trapdoor spider) Cyrtaucheniidae (wafer trapdoor spider) Dipluridae (funnel-web tarantula) Hexathelidae (venomous funnel-web tarantula) Mecicobothriidae (dwarf tarantulas) Theraphosidae (tarantula) The Mygalomorphae, (previously called the Orthognatha), are a suborder of spiders. ...
The Araneomorphae, previously called the Labidognatha, are a suborder of spiders. ...
The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...
The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...
Arachnology is the scientific study of spiders and related organisms such as scorpions, pseudoscorpions, harvestmen, altogether called arachnids. ...
Entomology is the scientific study of insects. ...
Many spiders hunt by building webs to trap insects. These webs are made of spider silk, a thin, strong protein strand extruded by the spider from spinnerets on the end of the abdomen. All spiders produce silk, although not all use it to spin elaborate traps. Silk can be used to aid in climbing, forming smooth walls for burrows, cocooning prey, and for many other applications. Spider web with morning dew enhancing its visibility. ...
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A spider web made by a linyphid spider Spider silk is a fibre secreted by spiders. ...
A representation of the 3D structure of myoglobin, showing coloured alpha helices. ...
A spinneret is a spiders silk spinning organ. ...
Morphology and development Spiders, unlike insects, have only two body segments instead of three; a fused head and thorax (called a cephalothorax or prosoma) and an abdomen (called the opisthosoma), supported by a hard exoskeleton composed of mainly of chitin. A database query syntax error has occurred. ...
For other uses of the word head, see head (disambiguation). ...
Diagram of a tsetse fly, showing the head, thorax and abdomen The thorax is a division of an animals body that lies between the head and the abdomen. ...
The cephalothorax is an anatomical term used of arachnid and malacostracan arthropods for the first major body section. ...
The cephalothorax is an anatomical term used of arachnid and malacostracan arthropods for the first major body section. ...
Template:In progress The human abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ...
An exoskeleton, in contrast to an endoskeleton, is an external anatomical feature that supports and protects an animals body. ...
In biology, chitin is one of the main components in the cell walls of fungi, the exoskeletons of insects and other arthropods, and in some other animals. ...
 A long-jawed spider illustrating jaws, pedipalps, and eye pattern Spiders also have eight legs (insects have six), no antennae, and their eyes are single lenses rather than compound eyes. Additionally spiders have pedipalps (or just palps), which are two appendages next to their mouths that aid in manipulating food and are used by the males in mating. Download high resolution version (800x773, 114 KB)Photograph of a long-jawed spider (Tetragnathidae) close up taken on January 1, 2004 by Eric Guinther at Kawai Nui Marsh on Oahu, Hawaii. ...
Download high resolution version (800x773, 114 KB)Photograph of a long-jawed spider (Tetragnathidae) close up taken on January 1, 2004 by Eric Guinther at Kawai Nui Marsh on Oahu, Hawaii. ...
Antennae (singular antenna), are the paired appendages connecting to the first (and in crustaceans also to the second) segment of the head of the members of all subphyla of the arthropods except Chelicerata. ...
A lens is: a part of the eye an optical device that may be used in a camera or in a telescope; see lens (optics). ...
Compound eye of a dragonfly Compound eye of Antarctic krill as imaged by an electron microscope A compound eye is a visual organ found in certain arthropods such as some insects and crustaceans. ...
Male European garden spider with swollen pedipalps Pedipalps are a pair of feelers on a spiders face. ...
Male European garden spider with swollen pedipalps Pedipalps are a pair of feelers on a spiders face. ...
Respiration and circulation Spiders have an open circulatory system, meaning they don't have true blood or veins for it to travel in. Rather their bodies are filled with haemolymph, which is pumped through arteries by a heart into spaces called sinuses surrounding their organs. An open circulatory system is an arrangement of internal transport in which blood bathes the organs directly and there is no distinction between blood and interstitial fluid. ...
Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ...
In biology, a vein is a blood vessel which returns blood from the microvasculature to the heart. ...
Hemolymph (or haemolymph) is the blood analogue used by those animals, such as all arthropods and most mollusks, that have an open circulatory system. ...
The heart and lungs (from an older edition of Grays Anatomy) The heart (Latin cor) is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions. ...
A sinus is a pouch or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. ...
In biology, an organ (Latin organum: instrument, tool) is a group of tissues, which perform a specific function or group of functions. ...
 Spider anatomy: (1) four pairs of legs (2) cephalothorax (3) opisthosoma Spiders have developed several different respiratory anatomies, based either on book lungs, a tracheal system, or both. Primitive mygalomorph spiders generally have only a pair of book lungs filled with haemolymph, where openings on the ventral surface of the abdomen allows air to enter and diffuse oxygen. Modern araneomorph spiders often have a single book lung in addition to spiracles which deliver air into the tracheae, where oxygen is then diffused into the haemolymph. In the tracheal system oxygen interchange is much more efficient, enabling cursorial hunting (hunting involving rapid pursuit) and other advanced characteristics. Wikipedia does not have an article with this exact name. ...
Wikipedia does not have an article with this exact name. ...
A book lung is a rudimentary type of lung found in arachnids, such as scorpions and spiders, and in horseshoe crabs. ...
The trachea (IPA /treikiə/), or windpipe, is a tube extending from the larynx to the bronchi in mammals, and from the pharynx to the syrinx in birds, carrying air to the lungs. ...
Families Atypidae (atypical tarantula) Antrodiaetidae (folding trapdoor spider) Mecicobothriidae (dwarf tarantulas) Hexathelidae (venomous funnel-web tarantula) Dipluridae (funnel-web tarantula) Cyrtaucheniidae (wafer trapdoor spider) Ctenizidae (trapdoor spider) Theraphosidae (tarantula) Source: Platnick 2003 The Mygalomorphae, previously called the Orthognatha, are a suborder of spiders. ...
A book lung is a rudimentary type of lung found in arachnids, such as scorpions and spiders, and in horseshoe crabs. ...
In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ...
General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ...
The Araneomorphae, previously called the Labidognatha, are a suborder of spiders. ...
Spiracles are small openings on the surface of animals that usually lead to respiratory systems. ...
Cursorial hunting is a hunting strategy practised by animals that are much slower over short distances than their quarry but have superior endurance over long distances. ...
Vision Spiders usually have eight eyes in various arrangements, a fact which is used to taxonomically classifiy different species. Sometimes one pair of eyes is better developed than the rest, or there are only six pair, or no eyes at all. Several families of hunting spiders have developed good to excellent vision, such as wolf spiders and jumping spiders. However most spiders that lurk on flowers, webs and other fixed locations waiting for prey have very poor eyesight, but possess extreme sensitivity to vibrations for hunting. Taxonomy (from Greek ταξινομία from the words taxis = order and nomos = law) may refer to either a hierarchical classification of things, or the principles underlying the classification. ...
Genera Arctosa Geolycosa Lycosa Pardosa Pirata Rabidosa Sosippus Wolf spiders are members of the family Lycosidae. ...
Genera Bagheera Corythalia Eris Freya Ghelna Habronattus Hentzia Lyssomanes Maevia Marpissa Messua Metacyrba Naphrys Paramarpissa Paraphidippus Phidippus Portia Salticus Sarinda Sassacus Sitticus Synemosyna Thiodina Zygoballus The jumping spiders (Salticidae) comprise a family of spiders containing more than 4,000 species. ...
Spider web with morning dew enhancing its visibility. ...
Defense Some primitive spiders, like the tarantula, have a patch of urticating hairs on their abdomens for defense, which are generally absent on modern spiders. The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...
For the Bob Dylan novel, see Tarantula (book) Genera Subfamily Acanthopelminae Acanthopelma Subfamily Aviculariinae Avicularia Ephobopus Pachistopelma Psalmopoeus Tapinauchenius Subfamily Eumenophorinae Anoploscelus Batesiella Citharischius Encyocrates Eumenophorus Hysterocrates Loxomphalia Loxoptygus Monocentropus Myostola Phoneyusa Polyspina Subfamily Harpactirinae Ceratogyrus Coelogenium Eucratoscelus Harpactira Pterinochilus Subfamily Ischnocolinae Chaetopelma Cratorrhagus Heterothele Ischnocolus Nesiergus Plesiophrictus/Neoplesiophrictus Subfamily...
This article needs to be cleaned up to conform to a higher standard of quality. ...
The Araneomorphae, previously called the Labidognatha, are a suborder of spiders. ...
Life cycle The spider life cycle progresses through three stages: the embryonic, the larval, and the nympho-imaginal (Foelix, 1996). A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ...
Between the time an egg is fertilized and the spider begins to take the shape of a spider is referred to as the embryonic stage (Foelix, 1996). As the spider begins to look more like a spider it enters the larval stage (Foelix, 1996). It enters the larval stage as a prelarva and, through subsequent molts, it reaches its larval form, a spider-looking, non self-sufficient animal feeding off its yolk supply (Foelix, 1996). After a few more molts, also called instars, body structures become differentiated; all organ systems are complete and the animal begins to hunt on its own; it has reached the nympho-imaginal stage (Foelix, 1996). This stage is differentiated by two sub-stages: the nymph, or juvenile stage and the imago, or adult stage (Foelix, 1996). A spider does not transition from the nymph to the imago until it has become sexually mature (Foelix, 1996). Once a spider has reached the imago stage, it will remain here until its death.
Reproduction Spiders reproduce by eggs laid in silk bundles called egg sacs. An average Whooping Crane egg is 102 mm long, and weighs 208 grams A baby tortoise emerges from a reptile egg. ...
 An unidentified species of spider guarding its (her) egg sac, Jerusalem, Israel. Spiders often use elaborate mating rituals (especially in the visually advanced jumping spiders) to allow the male to approach close enough to inseminate the female without triggering a predatory response. Assuming that the approach signals are exchanged correctly, the male spider must make a timely departure after mating to escape before the female's normal predatory instincts come back into operation. Download high resolution version (816x608, 224 KB)A spider carrying its egg sac, Jerusalem. ...
Download high resolution version (816x608, 224 KB)A spider carrying its egg sac, Jerusalem. ...
This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ...
Unusually, sperm transmission is an indirect process. When a male is ready to mate, he will spin a web pad onto which the contents of the abdominal reproductive organs are discharged. He then dips his palps (also known as 'palpi'), the small, leg-like appendages on the front of his cephalothorax, into the sperm, absorbing it. Mature male spiders characteristically have swollen bulbs on the end of their palps for this purpose, and this is a useful way to identify the sex of a spider in the field. With his palps thus 'charged' he then goes off in search of a female. The act of copulation occurs when the male inserts one or both palps into the female's genital opening, known as the epigyne. He transfers his sperm into the female by contracting his palps. The cephalothorax is an anatomical term used of arachnid and malacostracan arthropods for the first major body section. ...
The epigyne or epigynum is the female genital opening in spiders. ...
Very unusual behaviour is seen in spiders of the genus Tidarren, as the male amputates one of his palps before maturation and enters his adult life with one palp only. The palpi constitute 20% of its body mass, and since this weight greatly impedes its movement, the spider detaches one of the two to gain mobility. In the Yemeni species Tidarren argo, the remaining palp is then torn off by the female. The separated palp remains attached to the female's epigynum for about four hours and apparently continues to function independently. In the meantime the female feeds on the palpless male. (Journal of Zoology (2001), 254:449-459 Cambridge University Press) See genus (mathematics) for the use of the term in mathematics. ...
The headquarters of the Cambridge University Press, in Trumpington Street, Cambridge. ...
Do female spiders eat their mates? It is often said that the male (usually significantly smaller than the female, down to 1% of her size for Tidarren sisyphoides) is likely to be killed by the female after the coupling, or sometimes before intercourse has occurred. This supposed propensity is what gave the black widow spider (Latrodectus mactans) its name. However, the three species of North American black widows do not seem usually to kill the male (although they may) and males can sometimes live in the web of a female for a while without being harmed. The male Latrodectus hasselti dies after it inserts its second palpus in the female genital opening even if the female does not eat it. World map showing location of North America A satellite composite image of North America North America is a continent in the northern hemisphere, bounded on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west...
However, despite these examples, and many other similar reports, the story of the 'sacrificial male' has become greater than the truth. Mating of spiders is not invariably followed by cannibalism. Rainer F. Foelix, (1982), says "The supposed aggressiveness of the female spider towards the male is largely a myth... only in some exceptional cases does the male fall victim to the female.". Michael Roberts (1995) says "It is rare for a fit male to be eaten by the female..."
However, there has been speculation on why this sacrifice of male mates might occur at all. One theory is that once the male has mated, if he is unlikely to mate again then further extension of his life serves no evolutionary purpose, while the sacrifice of the male may help increase egg production through increased nutrition for the female. Having more offspring would give the male an advantage of having his genes passed on over other males that were not eaten. This would be consistent with the hypothesis (Roberts, 1995) that old or unfit males get eaten, whilst younger and fitter ones may survive to mate again. Charles Darwin, father of the theory of evolution by natural selection. ...
Nutrition is the study of the relationship between diet and states of health and disease. ...
Ecology Spiders have a great range of variation and lifestyle, although all are predatory. Spider under rock File links The following pages link to this file: Spider Categories: GFDL images ...
Spider under rock File links The following pages link to this file: Spider Categories: GFDL images ...
This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ...
While spiders are generalist predators, in actuality their different methods of prey capture often limits the type of prey taken. Thus web-building spiders rarely capture caterpillars and crab spiders that ambush prey in flowers capture more bees, butterflies and some flies than other insects. Groups of families that tend to take certain types of prey because of their prey capture methods are often called guilds. A few spiders are more specialized in their prey capture. Dysdera captures and eats sowbugs, pillbugs and beetles, while pirate spiders eat only other spiders. Bolas spiders in the family Araneidae use sex pheromone analogs to capture only the males of certain moth species. Despite their generally broad prey ranges spiders are one of the most important links in the regulation of the populations of insects. Every day on a meadow they devour over 10 g/m² of insects and other arthropods. Families Andrenidae Apidae Colletidae Halictidae Heterogynaidae Megachilidae Melittidae Oxaeidae Sphecidae Stenotritidae bee or bees, see bee (disambiguation). ...
Families Superfamily Hesperioidea: Hesperiidae Superfamily Papilionoidea: Papilionidae Pieridae Nymphalidae Lycaenidae Riodinidae A butterfly is a flying insect of the order Lepidoptera belonging to one of the superfamilies Hesperioidea (the skippers) and Papilionoidea (all other butterflies). ...
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Predatory techniques
 A golden silk spider (Nephila clavipes), member of the family Tetragnathidae
 A spider hiding in its leaf (located at the centre of its web) There are many families of spiders, and the ways that they catch prey are diverse. But whether they catch insects, fish, small mammals, small birds, or some other small form of life, as soon as a spider makes contact with its prey it will attempt to bite. Wikipedia does not have an article with this exact name. ...
Wikipedia does not have an article with this exact name. ...
Download high resolution version (960x1280, 244 KB)A spiders house in a leaf Taken by User:Fir0002 File links The following pages link to this file: Spider Categories: GFDL images ...
Download high resolution version (960x1280, 244 KB)A spiders house in a leaf Taken by User:Fir0002 File links The following pages link to this file: Spider Categories: GFDL images ...
Prey can refer to: Look up Prey in Wiktionary, the free dictionary A prey animal eaten by a predator in an act called predation. ...
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Groups Conodonta Hyperoartia Petromyzontidae (lampreys) Pteraspidomorphi (early jawless fish) Thelodonti Anaspida Cephalaspidomorphi (early jawless fish) Galeaspida Pituriaspida Osteostraci Gnathostomata (jawed vertebrates) Placodermi Chondrichthyes (cartilaginous fish) Acanthodii Osteichthyes (bony fish) Actinopterygii (ray-finned fish) Sarcopterygii (lobe-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) A fish is a poikilothermic (cold-blooded)* water-dwelling...
Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals characterized by the presence of mammary glands...
Orders Many - see section below. ...
Spiders bite their prey, and occasionally animals that cause them pain or threaten them, to do two things. First, they inflict mechanical damage, which, in the case of a spider that is as large or larger than its prey, can be severe. Second, they can choose to inject venom through their hollow fangs. Many genera, such as the widow spiders, inject neurotoxins that can spread through the prey's entire body and interfere with vital body functions. Other genera inject venom that operates to produce tissue damage at the site of the bite. Genera such as that of the brown recluse spider produce a necrotoxin. The necrotoxin is injected into prey where it causes the degradation of cell membranes. In the larger victims that do not die from these attacks, painful lesions over a fairly wide area of the body can remain active for fairly long periods of time. Wasp stinger, with droplet of venom Venom is a general term for the poisons used by several groups of animal species, for the purpose of defense and hunting prey. ...
Fang may mean: One of the Beti-Pahuin ethnic groups of Central Africa; A pointed tooth; A transliteration of Chinese Family Names 方,防,房 etc. ...
A neurotoxin is a toxin that acts specifically on nerve cells, or neurons, usually by interacting with membrane proteins and ion channels. ...
Biological tissue is a group of cells that perform a similar function. ...
According to the International Society for the Study of Pain, there are two different terms: pain and nociception. ...
Digestion is carried out internally and externally. The spiders secrete digestive fluids into their prey from a series of ducts perforating their jaws. These digestive fluids dissolve the prey's internal tissues. Then, the spider feeds by sucking the partially digested fluids out. Spiders consume only liquid foods. Many spiders will store prey temporarily while this process of external digestion is going on. Web weaving spiders that have made a shroud of silk to quiet their envenomed prey's death struggles will generally leave them in these shrouds and then consume them at their leisure. Digestion is the process whereby a biological entity processes a substance, in order to chemically convert the substance into nutrients. ...
Prey can refer to: Look up Prey in Wiktionary, the free dictionary A prey animal eaten by a predator in an act called predation. ...
Spider webs and prey capture Main article: Spider web Download high resolution version (1600x1302, 271 KB)Spiderlings File links The following pages link to this file: Spider Categories: GFDL images ...
Download high resolution version (1600x1302, 271 KB)Spiderlings File links The following pages link to this file: Spider Categories: GFDL images ...
Spider web with morning dew enhancing its visibility. ...
Some spiders spin funnel-shaped webs, others make irregular webs, and still others make the spiral "orb" webs which are most commonly associated with the order. A funnel is a conically shaped pipe, employed as a device to channel liquid or fine-grained substances into containers with a small opening. ...
In mathematics, a spiral is a curve which turns around some central point or axis, getting progressively closer to or farther from it, depending on which way you follow the curve. ...
The spider, after spinning its web, will then wait (often, but not always, at the center of the web) for a prey animal to become trapped. They sense the impact and struggle of a prey animal by vibrations transmitted along the web lines.
Other species of spiders do not use webs for capturing prey directly, instead pouncing from concealment (e.g. Trapdoor spiders) or running them down in open chase (e.g. Wolf spiders). Spiders do not usually adhere to their own webs. However, they are not immune to their own glue. Some of the strands of the web are sticky, and others are not. The spiders have to be careful to only climb on the non-sticky strands. Genera Bothriocyrtum Cyclocosmia Ummidia Trapdoor spiders (family Ctenizidae) are medium-sized mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation and silk. ...
Genera Arctosa Geolycosa Lycosa Pardosa Pirata Rabidosa Sosippus Wolf spiders are members of the family Lycosidae. ...
Types of spiders and the severity of their bites Over 37,000 species of spiders have been identified but, because of their great ability for hiding, it is believed there are nearer 200,000 species. Almost all species are venomous, but only 30 species are known to be deadly dangerous.
Key to bite severity:
- Extremely dangerous: Bite (assuming successful envenomation) may cause death in a healthy adult without emergency medical treatment.
- Very dangerous: Bite may cause death in children, the elderly, the infirm without prompt medical treatment; and/or may cause debilitating injury. Prompt medical attention is required.
- Dangerous: Bite unlikely to cause death/no known deaths reported; bite may cause significant local or systematic reaction. Medical attention is generally required to limit scope of symptoms.
- Painful bites: Venom may inflict localized pain (similar to a bee sting) but does not have any dangerous or long-term side effects. Medical attention generally not required.
- Not dangerous: Spider is unable to puncture human skin, and/or venom does not cause any significant reaction in humans.
- No venom: This species does not produce venom. The only true Family of spiders in this category is the Hackled_orbweavers; other Arachnids often confused with spiders, such as the harvestman, also do not produce venom.
A couple of things should be noted when considering the amount of danger posed by spider bites. First, it is often the case that a spider bite is "dry"--the skin may be pierced, but little or no venom injected into the victim; thus reducing or eliminating any harmful effects. Second, there have been reports of spider bites (by spiders considered otherwise harmless) causing allergic reactions in some individuals, up to and including anaphylactic shock, a life-threatening condition (much the same as a sting from an ant, bee, or wasp). Third, many spiders listed as dangerous are seldom encountered, or have dispositions that make them unlikely to bite despite the high toxicity of their venom. Finally, little is known about the toxicity of many spiders, due to infrequent encounters with Man; the list of venomous spiders is limited to those who are linked to medical events in humans or who otherwise have been extensively studied. The spiders called hackled orbweavers (Uloboridae) have a special adaptation that enables them to produce hackled silk, i. ...
The Phalangids or Opiliones (better known as harvestmen or daddy longlegs) are eight-legged invertebrate animals belonging to the order Opiliones in the class Arachnida, in the subphylum Chelicerata of the phylum Arthropoda. ...
This article needs cleanup. ...
Anaphylaxis is a severe and rapid systemic allergic reaction to a trigger substance, called an allergen. ...
Subfamilies Formicomorph subfamilies Aneuretinae Dolichoderinae Formicinae - e. ...
Families Andrenidae Apidae Colletidae Halictidae Heterogynaidae Megachilidae Melittidae Oxaeidae Sphecidae Stenotritidae bee or bees, see bee (disambiguation). ...
WASP (an acronym for White Anglo-Saxon Protestant) is a term that denotes the culture, customs, and heritage of the American élite Establishment. ...
It should also be noted that for healthy adults, a bite by even the most toxic spiders on the list will require hours before death ensues; if timely appropriate emergency medicine is administered, victims should be expected to recover. The scenario given in movies such as Arachnophobia--where bite victims die within minutes--does not occur. One exception to this is with very small children; there is at least one recorded case of a small child dying within 15 minutes of a bite from a Sydney funnel-web spider; that occurred before the development of an antivenin. Arachnophobia was an American horror and comedy film released in 1990 directed by Frank Marshall and starring John Goodman and Jeff Daniels. ...
Binomial name Atrax robustus Pickard-Cambridge, 1877 The Sydney funnel-web spider, also called a funnel-web tarantula, (Atrax robustus) is regarded by some to be the most dangerous spider in the world. ...
Antivenom (or antivenin, or antivenene) is a biological product used in the treatment of venomous bites. ...
Tangleweb spiders This article needs to be cleaned up to conform to a higher standard of quality. ...
Binomial name Latrodectus hasselti The red-back spider (Lactrodectus hasselti) is a potentially dangerous spider now found throughout Australia. ...
Picture of a mother American house spider, her egg sac, and a couple of recently hatched spiders. ...
Orb web spiders (Araneidae)
 A Garden Orb Weaver Eating a bee Download high resolution version (800x699, 129 KB)A large Australian Garden Orb Weaver Spider. ...
Download high resolution version (800x699, 129 KB)A large Australian Garden Orb Weaver Spider. ...
St Andrews Cross spider - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
Genera Leucauge Meta Leucage Nephila Pachygnatha Tetragnatha The Long-jawed orb weavers or Long jawed spiders (family Tetragnathidae) are elongated spiders with long legs and chelicerae. ...
Cyclosa conica is a small spider with no common name. ...
Picture of a young male European garden spider wrapping up a common flesh fly European garden spider in web The European garden spider (Araneus diadematus, cross spider) is a very common and well-known orb-weaver spider in Western Europe. ...
An Australian Garden Orb Weaver The Australian Orb Weaving Spider is a very common species with many close variants in size, shape and color within Australia. ...
Australian Jewel Spider The Australian Jewel Spider, species Austracantha minax family Araneidae , also know as the chrismas spider, or spiny spider, has a very distinctive body. ...
Other forms of webs
 The Victorian Funnelweb Spider Download high resolution version (1600x1391, 438 KB) Wikipedia does not have an article with this exact name. ...
Download high resolution version (1600x1391, 438 KB) Wikipedia does not have an article with this exact name. ...
Binomial name Atrax robustus Pickard-Cambridge, 1877 The Sydney funnel-web spider, also called a funnel-web tarantula, (Atrax robustus) is regarded by some to be the most dangerous spider in the world. ...
Frontinella Frontinella close up The Bowl and Doily spiders (Frontinella pyramitela, family: Linyphiidae) are small (about 4 mm. ...
Binomial name Tegenaria agrestis Walckenaer, 1802 The hobo spider (Tegenaria agrestis) is a member of the genus of spiders known colloquially as funnel web spiders. ...
Species 491, including naevia The grass spiders are members of the genus Agelenopsis. ...
The filmy dome spider is a member of the Linyphiidae (Bowl and doily and dwarf spiders) family, the genus Neriene and the species radiata. ...
The spiders called hackled orbweavers (Uloboridae) have a special adaptation that enables them to produce hackled silk, i. ...
Spiders that live on flowers Genera Misumena Misumenops Misumenoides Thomisius Xysticus Tmarus The true crab spiders are a group of spiders constituting the family Thomisidae or thomisids. ...
Hunting spiders Download high resolution version (900x878, 165 KB)Brachypelma Edit Taken and edited by Fir0002 File links The following pages link to this file: Spider User talk:Docu Wikipedia:Featured pictures visible Tarantula User talk:Ludraman User:Moverton User:Brian0918 User talk:Fir0002 User talk:The bellman Wikipedia:Template messages/User...
Download high resolution version (900x878, 165 KB)Brachypelma Edit Taken and edited by Fir0002 File links The following pages link to this file: Spider User talk:Docu Wikipedia:Featured pictures visible Tarantula User talk:Ludraman User:Moverton User:Brian0918 User talk:Fir0002 User talk:The bellman Wikipedia:Template messages/User...
The Brazilian wandering spider (Phoneutria nigriventer) is regarded by some as the most dangerous spider in the world. ...
Binomial name Loxosceles reclusa Gertsch & Mulaik, 1940 The brown recluse spider is a venomous spider of the family Sicariidae (formerly of the family Loxoscelidae) and the genus and species Loxosceles reclusa. ...
Genera Delena (Flat huntsman spider) Heteropoda (Brown huntsman spider) Holconia (Banded huntsman spider) Isopeda Isopedella Neosparassus (Shield hunstman spider) Pediana Numerous others, see links Huntsman spiders is a common name given to the family Sparassidae (formerly Heteropodidae). ...
Genera Bagheera Corythalia Eris Freya Ghelna Habronattus Hentzia Lyssomanes Maevia Marpissa Messua Metacyrba Naphrys Paramarpissa Paraphidippus Phidippus Portia Salticus Sarinda Sassacus Sitticus Synemosyna Thiodina Zygoballus The jumping spiders (Salticidae) comprise a family of spiders containing more than 4,000 species. ...
Peucetia viridans Green lynx spider with eggcase Hemingway, South Carolina The Lynx spiders are hunting spiders somewhat similar to the wolf spiders and the jumping spiders. ...
Nursery web spiders are spiders of the family Pisauridae. ...
Genera Scytodes Spitting spiders (Family Scytodidae) are spiders of the genus Scytodes and their relatives. ...
For the Bob Dylan novel, see Tarantula (book) Genera Subfamily Acanthopelminae Acanthopelma Subfamily Aviculariinae Avicularia Ephobopus Pachistopelma Psalmopoeus Tapinauchenius Subfamily Eumenophorinae Anoploscelus Batesiella Citharischius Encyocrates Eumenophorus Hysterocrates Loxomphalia Loxoptygus Monocentropus Myostola Phoneyusa Polyspina Subfamily Harpactirinae Ceratogyrus Coelogenium Eucratoscelus Harpactira Pterinochilus Subfamily Ischnocolinae Chaetopelma Cratorrhagus Heterothele Ischnocolus Nesiergus Plesiophrictus/Neoplesiophrictus Subfamily...
Genera Arctosa Geolycosa Lycosa Pardosa Pirata Rabidosa Sosippus Wolf spiders are members of the family Lycosidae. ...
Binomial name Cheiracanthium inclusum The Yellow Sac Spider (Cheiracanthium inclusum) is not a true sac spider, but a long-legged sac spider, that is, a member of the family Miturgidae that was formerly classified in that group. ...
Spiders which ambush their prey Genera Bothriocyrtum Cyclocosmia Ummidia Trapdoor spiders (family Ctenizidae) are medium-sized mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation and silk. ...
Others
 Bird Dropping Spider with its unusual eggs Download high resolution version (1024x873, 215 KB) Wikipedia does not have an article with this exact name. ...
Download high resolution version (1024x873, 215 KB) Wikipedia does not have an article with this exact name. ...
Wind scorpion, Eastern Washington, USA The Camel Spider (aka wind scorpion or sun spider) is the common name for a Solpugid: a large non-spider arachnid that lives in desert regions worldwide. ...
Urban legends are a kind of folklore consisting of stories often thought to be factual by those circulating them. ...
Binomial name Heptalhela kimurai Kishida, 1923 The kimura-gumo (Heptathela kimurai) is a spider, named after Kimura Arika, who discovered it in 1920. ...
Binomial name Microhexura montivaga (, ) Spruce-fir moss spiders (Microhexura montivaga) are an endangered species of spider found at high elevations in the southern Appalachian Mountains. ...
Binomial name Neoleptoneta myopica (Gertsch, 1974) The Tooth cave spider (Neoleptoneta myopica) is a 1/16 inch (1. ...
Binomial name Celaenia excavate L. Koch, 1867 The bird dropping spider (Celaenia excavate) derives its name from mimicking bird droppings to avoid predators, mainly birds. ...
Uncategorised Net-casting spiders make a small web in the form of a net held by the front legs that can be stretched out wide to envelop an unwary insect passing by. ...
Spider bites Most spiders are unlikely to bite humans because they do not identify humans as prey. Spiders, even small ones, may however bite humans when pinched. For instance, a common jumping spider (Family: Salticidae), around 3/8 inch (1 cm.) long, when pinched between the folds of a human's palm may inflict a bite that is about as painful as a bee sting. Many cold and temperate parts of the world, including the United Kingdom, are free from any spiders which are capable of inflicting any painful bite in normal circumstances: but in warmer climes there are a number of spiders which are capable of biting a human, and, of these, a few can also be classed as dangerous.
Dangerous spiders in the United States include widow spiders, brown recluse spiders, hobo spiders, and yellow sac spiders. Species Approx. ...
Binomial name Loxosceles reclusa Gertsch & Mulaik, 1940 The brown recluse spider is a venomous spider of the family Sicariidae (formerly of the family Loxoscelidae) and the genus and species Loxosceles reclusa. ...
Binomial name Tegenaria agrestis Walckenaer, 1802 The hobo spider (Tegenaria agrestis) is a member of the genus of spiders known colloquially as funnel web spiders. ...
Binomial name Cheiracanthium inclusum The Yellow Sac Spider (Cheiracanthium inclusum) is not a true sac spider, but a long-legged sac spider, that is, a member of the family Miturgidae that was formerly classified in that group. ...
None of these spiders will intentionally "come after you," but they should be removed from one's house to avoid accidental injury. Many authorities warn against spraying poisons indiscriminately to kill all spiders, because doing so may actually remove one of the biological controls against incursions of the more dangerous species by ridding them of their competition.
If dangerous spiders are present in your area, then be mindful when you move cardboard boxes and other such objects that may have become the shelter of a poisonous spider. There is no need to be fearful; just do not grab a spider.
Black widows The Black widow spider is one of a number of widow spiders (genus Latrodectus) that carry a neurotoxic venom. Like many spiders widows have very poor vision (jumping spiders and wolf spiders being exceptions), and move with difficulty when not on their web. This article needs to be cleaned up to conform to a higher standard of quality. ...
Species Approx. ...
The scientific term for the widow spider is a member of the spider genus Latrodectus. ...
The term neurotoxic is used to describe a substance, condition or state that damages the nervous system and / or brain, usually by killing neurons. ...
Wasp stinger, with droplet of venom Venom is a general term for the poisons used by several groups of animal species, for the purpose of defense and hunting prey. ...
Genera Bagheera Corythalia Eris Freya Ghelna Habronattus Hentzia Lyssomanes Maevia Marpissa Messua Metacyrba Naphrys Paramarpissa Paraphidippus Phidippus Portia Salticus Sarinda Sassacus Sitticus Synemosyna Thiodina Zygoballus The jumping spiders (Salticidae) comprise a family of spiders containing more than 4,000 species. ...
Genera Arctosa Geolycosa Lycosa Pardosa Pirata Rabidosa Sosippus Wolf spiders are members of the family Lycosidae. ...
The female Black widows poor vision makes it difficult to move when away from their web, where they tend to stay making human contact less likely. The males (which wander around seeking mates) are too small to deliver a dangerous amount of venom. Black widow bites are most dangerous to children who have smaller body weights than adults and so the poison will be more concentrated in their bodies. ...
The skull and crossbones symbol traditionally used to label a poisonous substance. ...
Brown recluse spiders and hobo spiders
 Brown Recluse (Photo courtesy of the University of Nebraska) Brown recluse spiders frequently wander about and so are more easily trapped against one's skin by clothing, bed sheets, etc. The so-called "aggressive house spider" or hobo spider (Tegenaria agrestis) is also a wanderer that may come into contact with people and bite. The yellow sac spiders take shelter in silk tubes during the daytime and come out to hunt at night. People may unintentionally make contact with them in the dark and so be bitten. Brown recluse spider Image found at [1] in January of 2004. ...
Brown recluse spider Image found at [1] in January of 2004. ...
Binomial name Loxosceles reclusa Gertsch & Mulaik, 1940 The brown recluse spider is a venomous spider of the family Sicariidae (formerly of the family Loxoscelidae) and the genus and species Loxosceles reclusa. ...
Binomial name Tegenaria agrestis Walckenaer, 1802 The hobo spider (Tegenaria agrestis) is a member of the genus of spiders known colloquially as funnel web spiders. ...
Binomial name Cheiracanthium inclusum The Yellow Sac Spider (Cheiracanthium inclusum) is not a true sac spider, but a long-legged sac spider, that is, a member of the family Miturgidae that was formerly classified in that group. ...
Brown recluse spider bites can produce very severe local symptoms, death of tissue around the wound, and, sometimes, severe systemic symptoms. The bites of hobo spiders can cause both pain and necrosis (tissue death), and yellow sac spider bites can be extremely painful. Biological tissue is a group of cells that perform a similar function. ...
Binomial name Tegenaria agrestis Walckenaer, 1802 The hobo spider (Tegenaria agrestis) is a member of the genus of spiders known colloquially as funnel web spiders. ...
It is believed that many spider bites which are attributed (often by physicians and other medical personnel) to the brown recluse are in fact caused by the hobo spider (if caused by a spider at all). Many brown recluse bites are reported in the U.S. west coast states (Washington, Oregon, and California) where populations of brown recluse spiders have not been found. State nickname: The Evergreen State Other U.S. States Capital Olympia Largest city Seattle Governor Christine Gregoire (D) Official languages None Area 184,824 km² (18th) - Land 172,587 km² - Water 12,237 km² (6. ...
State nickname: Beaver State Other U.S. States Capital Salem Largest city Portland Governor Ted Kulongoski (D) Official languages None Area 255,026 km² (9th) - Land 248,849 km² - Water 6,177 km² (2. ...
State nickname: The Golden State Other U.S. States Capital Sacramento Largest city Los Angeles Governor Arnold Schwarzenegger (R) Official languages English Area 410,000 km² (3rd) - Land 404,298 km² - Water 20,047 km² (4. ...
Binomial name Loxosceles reclusa Gertsch & Mulaik, 1940 The brown recluse spider is a venomous spider of the family Sicariidae (formerly of the family Loxoscelidae) and the genus and species Loxosceles reclusa. ...
There are other species of spider in the genus Loxosceles which are found in California and other southwestern states; most of these species live in remote areas and are rarely encountered by humans. Bites of Loxosceles spiders found in South America are more serious in their consequences than their North American relatives.
Huntsman spiders The huntsman spiders have a worldwide reputation for scaring people. They are large, defend their nests, and may move toward people and make threat displays. They frequently enter houses and hunt over the walls and ceilings where they may run rapidly for long distances without pausing. When they actually do bite people, the bites are very unpleasant, but these spiders are not regarded as dangerous. They are quite common in parts of Australia. Australian huntsman spiders are typically non-aggressive except when defending their nests or their young. Genera Delena (Flat huntsman spider) Heteropoda (Brown huntsman spider) Holconia (Banded huntsman spider) Isopeda Isopedella Neosparassus (Shield hunstman spider) Pediana Numerous others, see links Huntsman spiders is a common name given to the family Sparassidae (formerly Heteropodidae). ...
There is one spider in California and Japan, probably a huntsman (tentatively identified as a member of the Sparassidae family, Heteropoda venatoria), that might run over and bite your finger if you touch the wall that it is clambering over. That behavior may well occur because its eyesight is good enough to see movement and general shape, but not sufficient to avoid mistaking something else for its natural prey.
Redback jumping spiders Some people have reported being bitten by redback jumping spiders (Phidippus johnsoni). Most reports seem to be from California. These spiders have bright red abdomens (the females have a black stripe), and should be clearly visible even if they are not particularly large. It is unclear how the bites occur. Accidental contact seems rather unlikely since jumping spiders have excellent vision and could easily avoid being brushed by a human hand. It is also unlikely that they would mistake a human finger for their natural prey. One source suggests that since they are quite attractive children may try to pick them up and in that way elicit a defensive bite. Fortunately, the worst consequences reported have been three to four days of discomfort, with no permanent damage. Since they do not frequent human habitations it should ordinarily be easy to avoid unpleasant contact with them.
Brazilian wandering spiders and Sydney funnel-web spiders The Brazilian wandering spider (a ctenid spider) and the Sydney funnel-web spider (a mygalomorph not related to the araneomorph funnel-web spiders) frequently bite people and are regarded as among the most dangerous in the world. The Sydney funnel-web spider is restricted to a relatively small area around Sydney, Australia. There are less dangerous species related to this spider in other parts of Australia, including Tasmania. The males in this case have somewhat more potent venom than females and they are also very aggressive. The Brazilian wandering spider reportedly may hitch a ride in clusters of bananas. As a result, any large spider appearing in a bunch of bananas should be treated with due care. Oddly many of the bites of this species are dry bites and no venom is released. The spiders are as large as some small tarantulas and have fairly long fangs. While venom from either spider can be deadly to children and the infirm, since the development of antidotes to the venoms of both were developed (the funnel web spider in the mid-1980's and the wandering spider in 1996), no humans have died from their bites. The Brazilian wandering spider (Phoneutria nigriventer) is regarded by some as the most dangerous spider in the world. ...
Binomial name Atrax robustus Pickard-Cambridge, 1877 The Sydney funnel-web spider, also called a funnel-web tarantula, (Atrax robustus) is regarded by some to be the most dangerous spider in the world. ...
Sydney Harbour looking south from the vicinity of the Sydney Harbour Bridge towards the CBD skyline; the Opera House is visible in the background on the left. ...
Species Hybrid origin; see text A banana is a tree-like plant (though strictly a herb) of the genus Musa in the family Musaceae, closely related to plantains. ...
An antidote is a substance which can counteract a form of poisoning. ...
Taxonomy Suborder Araneomorphae
The Araneomorphae, previously called the Labidognatha, are a suborder of spiders. ...
- Agelenidae (araneomorph funnel-web spider)
- Amaurobiidae (tangled nest spider)
- Anyphaenidae (anyphaenid sac spider)
- Araneidae (orb-weaver spider)
- Caponiidae (two-eyed spider)
- Clubionidae (sac spider)
- Corinnidae (corinnid sac spider)
- Ctenidae (wandering spider)
- Cybaeidae (water spider)
- Deinopidae (ogre-faced spider)
- Desidae (intertidal spider)
- Dictynidae (dictynid spider)
- Diguetidae (coneweb spider)
- Dysderidae (woodlouse hunter spider)
- Eresidae (velvet spider)
- Filistatidae (crevice weaver)
- Gnaphosidae (ground spider)
- Hahniidae (dwarf sheet spider)
- Hersiliiidae (tree trunk spider)
- Hypochilidae (lampshade spider)
- Leptonetidae (leptonetid spider)
- Linyphiidae (bowl, doily and dwarf spider)
- Liocranidae (liocranid sac spider)
- Lycosidae (wolf spider)
- Mimetidae (pirate spider)
- Miturgidae (long-legged sac spider)
- Nesticidae (scaffold web spider)
- Oecobiidae (wall and six-exit tent spider)
- Oonopidae (oonopid spider)
- Oxyopidae (lynx spider)
- Palpimanidae (palp-footed spider)
- Philodromidae (philodromid crab spider)
- Pholcidae (daddy long-legs spider)
- Pisauridae (nursery web spider)
- Plectreuridae (plectreurid spider)
- Salticidae (jumping spider)
- Scytodidae (spitting spider)
- Segestriidae (tube-dwelling spider)
- Selenopidae (wall crab spider)
- Sicariidae (recluse spider)
- Sparassidae (Huntsman spider)
- Tengellidae (tengellid spider)
- Tetragnathidae (long jawed spider)
- Theridiidae (tangle web spider)
- Thomisidae (crab spider)
 A crab spider on a blackeyed susan flower - Titanoecidae (titanoecid spider)
- Uloboridae (Hackled orbweavers)
- Zodariidae (zodariid ground spider)
- Zorocratidae (zorocratid spider)
- Zoropsidae (zoropsid spider)
Suborder Mesothelae
Genera Agelena Agelenopsis Hololena Tegenaria The araneomorph funnel-web spiders of the family Agelenidae include the common grass spiders of the genus Agelenopsis, as well as the mildly venomous European hobo spider, Tegenaria agrestis, which has been introduced into the Pacific Northwest of the United States. ...
Agelenopsis sp. ...
Agelenopsis sp. ...
Genera Anyphaena Hibana The anyphaenid sac spiders of the family Anyphaenidae are distinguished from the sac spiders and other spiders by having the abdominal spiracle placed one third to one half of the way anterior to the spinnerets toward the epigastric furrow on the underside of the abdomen. ...
Genera many, see text The orb-weaver spiders (family Araneidae) are the familiar builders of spiral wheel-shaped webs often found in gardens, fields and forests. ...
Image File history File links Download high resolution version (870x696, 159 KB) Please see the file description page for further information. ...
Image File history File links Download high resolution version (870x696, 159 KB) Please see the file description page for further information. ...
Genera many, see text The orb-weaver spiders (family Araneidae) are the familiar builders of spiral wheel-shaped webs often found in gardens, fields and forests. ...
Genera Clubiona Elaver The sac spiders of the family Clubionidae have a very confusing taxonomic history. ...
Genera Phoneutria The wandering spiders used to refer to the genus Phoneutria but now usually refers to the entire family Ctenidae. ...
The intertidal spiders of the family Desidae live in a very unusual location- between the tides. ...
Genera Cryptoparachtes Dasumia Dysdera Dysderocrates Folkia Harpactea Harpactocrates Holissus Hygrocrates Kaemis Mesostalita Minotauria Parachtes Parastalita Rhode Rhodera Sardostalita Speleoharpactea Stalagtia Stalita Stalitella Stalitochara Tedia The woodlouse hunters, sowbug-eating spiders or cell spiders, family Dysderidae, are araneomorph spiders found primarily in Eurasia, though extending into North Africa Dysderids have six...
Genera Afrofilistata Andoharano Filistata Filistatinella Filistatoides Kukulcania Lihuelistata Microfilistata Misionella Pikelinia Pritha Sahastata Tricalamus Wandella Yardiella Zaitunia The crevice weaver spiders (family Filistatidae) contain primitive cribellate, haplogyne, weavers of funnel or tube webs. ...
Genera Hypochilus Ectatosticta The Lampshade spiders of the family Hypochilidae are among the most primitive of araneomorph spiders. ...
Genera many, see text The bowl and doily and dwarf spiders, also known as money spiders (family Linyphiidae) include nearly 4250 species in over 550 genera worldwide. ...
A wolf spider defending its egg sac. ...
Genera many, see text The long-legged sac spiders (family Miturgidae) include nearly 400 species in about 30 genera worldwide. ...
Genera Oonops Gamasomorpha Scaphiella Orchestina The oonopid spiders (family Oonopidae) include about 450 species in about 65 genera worldwide. ...
Green lynx spider with egg case Image taken by me, released under GFDL Pollinator 05:05, 11 Feb 2004 (UTC) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Green lynx spider with egg case Image taken by me, released under GFDL Pollinator 05:05, 11 Feb 2004 (UTC) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Genera Ebo Philodromus Thanatus Tibellus and about 25 others The Philodromid crab spiders are the family Philodromidae, once considered to belong to a subfamily within the crab spiders, family Thomisidae. ...
The Daddy long-legs spider, also called the cellar spider or house spider, is a true spider and not a harvestman. ...
Nursery web spiders are spiders of the family Pisauridae. ...
Genera Bagheera Corythalia Eris Freya Ghelna Habronattus Hentzia Lyssomanes Maevia Marpissa Messua Metacyrba Naphrys Paramarpissa Paraphidippus Phidippus Portia Salticus Sarinda Sassacus Sitticus Synemosyna Thiodina Zygoballus and many others The jumping spiders (Salticidae) are a family of spiders containing more than 4,000 species. ...
Sicariidae are members of a genus of spiders found in arid portions of South America and southern Africa. ...
Genera Delena (Flat huntsman spider) Heteropoda (Brown huntsman spider) Holconia (Banded huntsman spider) Isopeda Isopedella Neosparassus (Shield hunstman spider) Pediana Numerous others, see links Huntsman spiders is a common name given to the family Sparassidae (formerly Heteropodidae). ...
Genera Leucauge Meta Neophila Tetragnatha The Long-jawed orb weavers or Long jawed spiders constitute the Family Tetragnathidae of the Order Araneae. ...
Genera Latrodectus Argyrodes Theridion Steatoda The tangle-web spiders or comb-footed spiders (family Theridiidae) are a large group (over 2000 species in nearly 80 genera) of haphazard web-builders found throughout the world. ...
Genera Misumena Misumenops Misumenoides Thomisius Xysticus Tmarus The true crab spiders are a group of spiders constituting the family Thomisidae or thomisids. ...
Crab Spider uses camouflage to gain a meal on a Black-Eyed-Susan Photo was taken in 2000 at the Botanical Gardens at Asheville, by Zen Sutherland. ...
Crab Spider uses camouflage to gain a meal on a Black-Eyed-Susan Photo was taken in 2000 at the Botanical Gardens at Asheville, by Zen Sutherland. ...
Genera Akyttara Amphiledorus Antillorena Asceua Aschma Australutica Basasteron Caesetius Capheris Cavasteron Chariobas Lutica Madrela Neostorena Palfuria Storena Zodarion and many others The Zodaraiid ground spiders, family Zodaraiidae, are a family of small to medium-sized spiders. ...
The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...
- Actinopodidae
- Arthrolycosidae (primitive spiders)
- Arthromygalidae (primitive spiders)
- Barychelidae
- Idiopidae
- Liphistiidae (primitve burrowing spiders)
- Microstigmatidae
- Migid
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