Brief Summary

    Eupelmidae: Brief Summary
    provided by wikipedia

    Eupelmidae is a family of parasitic wasps in the superfamily Chalcidoidea. The group is apparently polyphyletic, though the different subfamilies may each be monophyletic, and may be elevated to family status in the near future. As presently defined, there are over 905 described species in 45 genera. The larvae of the majority are primary parasitoids, commonly on beetle larvae, though many other hosts are attacked, including spiders, and details of the life history can be variable (e.g., some attack eggs and others are hyperparasites). They are found throughout the world in virtually all habitats.

    They are somewhat variable in appearance, though a fair number of species are relatively easy to separate from other Chalcidoidea by the possession of a medially concave mesonotum. They also have the unusual tendency to arch the body strongly upwards when dead, with the head and metasoma often nearly touching above the thorax.

    Brief Summary
    provided by Catalog of Hymenoptera in America North of Mexico
    In many classifications the eupelmids are placed in the family Encyrtidae. However, all the eupelmids agree in possessing an array of characters that indicate that they and the encyrtids diverged separately from the evolutionary stem of the chalcidoids at a remote time in the development of the superfamily. Eupelmids may be recognized by having the margin of the prepectus projecting over the margin of the mesepisternum, in having the forecoxae and midcoxae widely separated, and in having the midcoxae so formed that they can be rotated either anteriorly or posteriorly. The encyrtids do not have those characters.

Comprehensive Description