File:
<evaoidea.htm> [For
educational purposes only] Glossary <Principal Natural Enemy Groups > <Citations> <Home> |
HYMENOPTERA, Evanioidea
Please refer also to the following links for details on this
group: Evanioidea = Link 1 Evanioidea. --In this Superfamily
the abdomen is attached high above the hind coxae , the antennae are filiform
and have 13 or 14 segments. The
trochanters have two segments, and the front wing venation is usually complete
and there is a costal cell. Some (Gasteruptlidae and Aulacidae) superficially
resemble ichneumons. All are parasitoids of other insects. This is a small
Hymenopteran superfamily that includes three families, two of which,
Aulacidae & Gasteruptiidae, are more closely related to one another than
they are to the remaining family, Evaniidae. However, there is an extensive
fossil record that tends to fill in the gaps between the lineages. They have
the common trait of the metasoma being attached very high above the hind
coxae on the propodeum. It is
a scarcely-known group as a whole, with about 1110 known species, and many
species await description. While each of the three families differs in
biology, within each family
they are nevertheless uniform in appearance and biology. The 3 subfamilies, Aulacidae, Evaniidae and Gastgeruptiidae will
be treated separately in files <aulacid.htm>, <evaniid.htm> & <gasteru.htm>, respectively. References: Please refer to <biology.ref.htm>, [Additional references
may be found at: MELVYL
Library] |