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(suborder Apocrita, superfamily Chalcidoidea)

Family of minute (0.5–7.0 mm long), usually black or brown, parasitic wasps which have convex mesopleura and mesonota, and middle legs modified for jumping. The adults have a large apical spur on the front tibia, and some are wingless. The larvae are mostly parasitic on scale insects and whiteflies, but some parasitize psyllids, nymphal ticks, potato moths, etc. One group forms galls. Many are polyembryonic, producing from 10 to more than 1000 young from a single egg.

Subjects: Zoology and Animal Sciences.

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