Ensign Wasps
Scientific classification
Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Hymenoptera Suborder: Apocrita Superfamily: Evanioidea Family: Evaniidae
Genera
see text Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... Orders See taxonomy Insects (Class Insecta) are a major group of arthropods and the most diverse group of animals on the Earth, with over a million described species — more than all other animal groups combined [1]. Insects may be found in nearly all environments on the planet, although only a... Suborders Apocrita Symphyta Many families, see article Hymenoptera is one of the larger orders of Insects, comprising the sawflies, wasps, bees, and ants. ... Superfamilies Apoidea Ceraphronoidea Chalcidoidea Chrysidoidea Cynipoidea Evanioidea Ichneumonoidea Megalyroidea Proctotrupoidea Sphecoidea Stephanoidea Triganalyoidea Vespoidea Many families, see article Apocrita is a suborder of insects in the order Hymenoptera. ...

The ensign wasps (family Evaniidae) are a small cosmopolitan group of very distinctive appearance, with 20 extant genera containing some 450 known species. They have the metasoma attached very high above the hind coxae on the propodeum, and the metasoma itself is quite small, with a long one-segmented petiole, and compressed; the wasps move the abdomen up and down constantly, thus earning them their common name. Scorpion anatomy: 1 = Prosoma; 2 = Mesosoma; 3 = Metasoma The metasoma is clearly visible on this ant: it is the posterior section, including the petiole The metasoma is the posterior part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma... An insect leg The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. ... The propodeum is the first abdominal segment in Apocrita Hymenoptera (wasps, bees and ants). ... Scorpion anatomy: 1 = Prosoma; 2 = Mesosoma; 3 = Metasoma The metasoma is clearly visible on this ant: it is the posterior section, including the petiole The metasoma is the posterior part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma... The petiole of this ant consists of two segments In entomology, the term petiole is most commonly used to refer to the constricted first (and sometimes second) metasomal segment of members of the Hymenopteran suborder Apocrita; it may be used to refer to other insects with similar body shapes, where... It has been suggested that Trivial name be merged into this article or section. ...

As far as is known, their larvae are predatory on the eggs of roaches; the female wasp lays an egg inside the ootheca (egg case) of the roach host, and the wasp larva hatches quickly and consumes the roach eggs. Technically, they are neither parasites nor parasitoids as in related wasp groups. This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ... Binomial name Rutilus rutilus Linnaeus, 1758 The Roach (Rutilus rutilus, family Cyprinidae, plural also roach) is a small freshwater and brackish water fish native to most of Europe and western Asia. ... Ootheca is a type of egg mass made by any member of a variety of species (usually insects or mollusks). ... A parasite is an organism that spends a significant portion of its life in or on the living tissue of a host organism and which causes harm to the host without immediately killing it. ... This article or section is in need of attention from an expert on the subject. ...

One species, Evania appendigaster, has essentially a worldwide distribution, having been introduced along with various roach species. While they do attack insects that are considered pests, they rarely attain population sizes sufficient to act as effective biocontrol agents. Biological control of pests and diseases Overview A key belief of the organic gardener is that diversity furthers health. ...

Reference

Tree of Life Evaniidae
Catalogus Evaniidorum