The mouthparts of arthropods have evolved into a number of forms, each adapted to a different style of feeding. They are all developed, however, from the same basic form. Most of the parts used for feeding are modified, paired appendages, the exception being the labrum, which is a single, fused plate (though it was originally - and is embryonically - two structures); it is the front-most of the mouthparts and located on the midline. Subphyla and Classes Arthropods (phylum Arthropoda) (from Greek ἀρθρον, meaning joint and πούς/ποδός, meaning foot) are the largest phylum of animals and include the insects, arachnids, crustaceans, and others. ... A hypothetical phylogenetic tree of all extant organisms, based on 16S rRNA gene sequence data, showing the evolutionary history of the three domains of life, bacteria, archaea and eukaryotes. ... The eye is an adaptation. ... An appendage is, in general, an external body part that projects from the body, or a natural prolongation or projection from a part of any organism. ...

The development of insect mouthparts from the primitive chewing mouthparts of a grasshopper in the centre (A), to the lapping type (B) and the siphoning type (C). Legend: a, antennae; c, compound eye; lb, labium; lr, labrum; md, mandibles; mx, maxillae.

Image File history File links Download high resolution version (898x857, 240 KB) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high resolution version (898x857, 240 KB) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...

Insects

In insects, the labrum is followed by the mandibles, the maxillae and the labium, which is a single structure evolved out of a pair of appendages like the labrum, but it still bears segmented palpi unlike the labrum. The least modified insect mouthparts are of the chewing type, as found in grasshoppers and most beetles, amongst others. In the order Hemiptera, the mouthparts are specialised for piercing and sucking. They are typified by the mouthparts of an aphid, which pierces plant tissues and sucks up the sap. A further variation is the siphoning mouthparts of butterflies and moths; here, the maxillae form a long proboscis which is coiled at rest, but can be extended to suck nectar from flowers. Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... Families Grasshoppers are herbivorous insects of the suborder Caelifera in the order Orthoptera. ... Suborders Adephaga Archostemata Myxophaga Polyphaga See subgroups of the order Coleoptera Beetles are one of the most diverse groups of insects. ... Suborders Heteroptera Homoptera Hemiptera is an order of insects, comprising some 67,500 known species in two suborders, Heteroptera and Homoptera. ... Families There are 10 families: Adelgidae - adelgids, conifer aphids Anoeciidae Aphididae Drepanosiphidae Homomasagymibutae Greenideidae Hormaphididae Lachnidae Mindaridae Pemphigidae Phloeomyzidae Phylloxeridae Thelaxidae Aphids, also known as greenfly/blackfly or plantlice, are minute plant-feeding insects in the superfamily Aphidoidea in the homopterous division of the order Hemiptera. ... Families Superfamily Hesperioidea: Hesperiidae Superfamily Papilionoidea: Papilionidae Pieridae Nymphalidae Lycaenidae Riodinidae A butterfly is an insect of the Order Lepidoptera, and belongs to one of the superfamilies Hesperioidea (the skippers) or Papilionoidea (all other butterflies). ... A moth is an insect closely related to the butterfly. ... In general, a proboscis (from Greek pro before and baskein to feed) is an elongated appendage from the head of an animal. ... In Greek mythology, nectar and ambrosia are the food of the gods. ... Clivia miniata right hereflowers. ...

The coiled proboscis (modified maxillae) of a moth

Myriapods

Centipedes possess, in addition to their mouthparts, a pair of "poison claws" (maxillipeds), which are not considered mouthparts [1]. Orders Geophilomorpha Lithobiomorpha Scolopendrida Scutigerida Centipedes (Class Chilopoda) are fast-moving venomous, predatory terrestrial arthropods that have long bodies and many jointed legs. ... Antennules Pereiopods Carapace Pleopods Uropods Telson The body of a decapod crustacean is made up of nineteen body segments grouped into two main body parts, the cephalothorax and the abdomen. ...

The mouthparts of an edible crab: the third maxillipedes conceal the remaining mouthparts; the claws are not considered mouthparts.

[[{{{diversity_link}}}|Diversity]] {{{diversity}}} Binomial name Cancer pagurus Linnaeus, 1758 Trinomial name {{{trinomial}}} Type Species {{{type_species}}} {{{subdivision_ranks}}} [[Image:{{{range_map}}}|{{{range_map_width}}}|]] Synonyms {{{synonyms}}} The edible crab (Cancer pagurus) is a species of crab found in the North Sea, North Atlantic and the Mediterranean Sea. ... A claw is a curved pointed growth found at the end of a toe or finger, or in arthropods, of the tarsus. ...

Crustaceans

Crustaceans possess up to three pairs of maxillipeds, as well as two pairs of maxillae and a pair of mandibles. Classes & Subclasses Branchiopoda Phyllopoda Sarsostraca Remipedia Cephalocarida Maxillopoda Thecostraca Tantulocarida Branchiura Pentastomida Mystacocarida Copepoda Ostracoda Myodocopa Podocopa Malacostraca Phyllocarida Hoplocarida Eumalacostraca The crustaceans (Crustacea) are a large group of arthropods (55,000 species), usually treated as a subphylum [1]. They include organisms such as lobsters, crabs, shrimp and barnacles. ... Antennules Pereiopods Carapace Pleopods Uropods Telson The body of a decapod crustacean is made up of nineteen body segments grouped into two main body parts, the cephalothorax and the abdomen. ...

Arachnids

The mouthparts of arachnids vary in having a pair of pedipalps, which are particularly prominent in the males. These are homologous with the mandibles in insects and crustaceans. Orders The arachnids, are a class (Arachnida) of joint-legged invertebrate animals in the subphylum Chelicerata. ... Male European garden spider with swollen pedipalps Pedipalps are a pair of feelers on the front end of a spiders prosoma (aka cephalothorax), which can be thought of as its head. ... In biology, two or more structures are said to be homologous if they are alike because of shared ancestry. ...