Cuckoo Wasps are a type of parasitic wasp that lay their eggs in the nests of other insects. They are small, black and yellow in color, and have a long, slender body. They feed on the larvae of other insects, and their larvae feed on the food
Commonly referred to as cuckoo wasps or emerald wasps, the hymenopteran family Chrysididae is a very large cosmopolitan group of parasitoid or kleptoparasitic wasps, often highly sculptured, with brilliant metallic colors created by structural coloration. They are most diverse in desert regions of the world, as they are typically associated with solitary bee and wasp species, which are also most diverse in such areas. Their brood parasitic lifestyle has led to the evolution of fascinating adaptations, including chemical mimicry of host odors by some species.