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Reference.org
Cuckoo wasp
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<p>Commonly known as cuckoo wasps or emerald wasps, the <a href="/facts/Hymenoptera/xx7SU0VR">hymenopteran</a> family Chrysididae is a very large cosmopolitan group (over 3000 described species) of <a href="/facts/Parasitoid/bdkEbIN9">parasitoid</a> or <a href="/facts/Kleptoparasite/jjESGTzF">kleptoparasitic</a> wasps, often highly sculptured, with brilliant <a href="/facts/Animal_coloration/ULNm6v70">metallic colors</a> created by <a href="/facts/Structural_coloration/vg3zYCd9">structural coloration</a>. They are most diverse in desert regions of the world, as they are typically associated with solitary <a href="/facts/Bee/HglXpXty">bee</a> and <a href="/facts/Wasp/pbJjDyjr">wasp</a> 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. </p>