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Commonly known as cuckoo wasps or emerald wasps, the hymenopteran family Chrysididae is a very large cosmopolitan group (over 3000 described species) of parasitoid or kleptoparasite, kleptoparasitic wasps, often highly sculptured, with brilliant animal coloration, 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.
Members of the largest subfamily, Chrysidinae, are the most familiar; they are generally kleptoparasites, laying their eggs in host nests, where their larvae consume the host egg or larva while it is still young, then the food provided by the host for its own juvenile. Chrysidines are distinguished from the members of other subfamilies in that most have flattened or concave lower abdomens and can curl into a defensive ball ("volvation") when attacked by a potential host, in the manner of a pill bug. Members of the other subfamilies are parasitoids of either sawflies or Phasmatodea, walking sticks and cannot fold up into a ball.
Chrysidids are always solitary. They fly mainly in the hottest and driest months of summer, preferring subtropical and Mediterranean climates. They favor dry areas and sandy soils; each species is confined to a narrow type of microhabitat where adults may rest or find hosts to parasitize, for example on bare soil or on dead wood where other solitary wasps have their nest holes. Some species visit flowers such as of the Apiaceae, Asteraceae and Euphorbiaceae.
Western Australian Museum - Cuckoo Wasp factsheet
Chrysis. net
a picture rich and very informative site
Family Chrysididae - Cuckoo Wasps
at Bugguide, images and information.
Chrysididae Identification Guide
An online guide to the Chrysidids of Eastern North America
Hymis de
Images (=Bilder) {{Taxonbar, from=Q935920 Chrysididae,
Nomenclature
The term "cuckoo wasp" refers to the cuckoo-like way in which wasps in the family lay eggs in the nests of unrelated host species. The term is also used for some wasps outside of the family, such as ''Sapyga louisi''. Chrysididae, the scientific name of the family, refers to their shiny bodies and is derived from ancient Greek, Greek ''chrysis, chrysid-'', "gold vessel, gold-embroidered dress", plus the family (biology), familial suffix ''-idae''. The common names of many species pay similar tribute to their appearance: jewel wasp, gold wasp, emerald wasp, ruby wasp and so on (cf. French language, French ''guêpe de feu,'' "fire-wasp", and German language, German / Dutch language, Dutch ''Goldwespe / goudwesp,'' "gold-wasp").Ecology and behavior
Members of the largest subfamily, Chrysidinae, are the most familiar; they are generally kleptoparasites, laying their eggs in host nests, where their larvae consume the host egg or larva while it is still young, then the food provided by the host for its own juvenile. Chrysidines are distinguished from the members of other subfamilies in that most have flattened or concave lower abdomens and can curl into a defensive ball ("volvation") when attacked by a potential host, in the manner of a pill bug. Members of the other subfamilies are parasitoids of either sawflies or Phasmatodea, walking sticks and cannot fold up into a ball.
Chrysidids are always solitary. They fly mainly in the hottest and driest months of summer, preferring subtropical and Mediterranean climates. They favor dry areas and sandy soils; each species is confined to a narrow type of microhabitat where adults may rest or find hosts to parasitize, for example on bare soil or on dead wood where other solitary wasps have their nest holes. Some species visit flowers such as of the Apiaceae, Asteraceae and Euphorbiaceae.
Evolution
The fossil record of the group is fragmentary, the oldest fossil known being from the lower Aptian Turga Formation of Russia. Other Cretaceous specimens are known from the Albian-Cenomanian amber of France, a Cenomanian limestone in Morocco. The upper Santonian Taimyr amber of Russia and the upper Campanian Canadian amber.H. E. Evans. 1969. Three new Cretaceous aculeate wasps (Hymenoptera). ''Psyche'' 76:251-261References
External links
Western Australian Museum - Cuckoo Wasp factsheet
Chrysis. net
a picture rich and very informative site
Family Chrysididae - Cuckoo Wasps
at Bugguide, images and information.
Chrysididae Identification Guide
An online guide to the Chrysidids of Eastern North America
Hymis de
Images (=Bilder) {{Taxonbar, from=Q935920 Chrysididae,