Jewel-beetle-parasitoid
Guides
Acanthochalcis nigricans
Acanthochalcis nigricans is a large chalcidid wasp distinguished by white pubescent patches on the abdomen, which separate it from the similar A. unispinosa. Females possess an exceptionally long ovipositor and measure approximately 19 mm in total length. The species is a known parasitoid of Chrysobothris jewel beetles, including C. femorata and C. edwardsii, and has been observed seeking oviposition sites on dead mesquite branches. It occurs across the southwestern United States from Kansas and Oklahoma west to California.
Chalcididae
Chalcidid Wasps
Chalcididae is a family of parasitoid wasps within the superfamily Chalcidoidea, comprising over 85 genera and more than 1,460 species worldwide. Members are characterized by greatly enlarged, toothed hind femora that enable powerful jumping. Most species are parasitoids of Lepidoptera and Diptera pupae, though some attack Coleoptera (particularly jewel beetles in the genus Chrysobothris) and other insects. The family is currently considered polyphyletic, with subfamilies potentially warranting elevation to family status. They occur across diverse habitats from tropical to temperate regions, with notable diversity in semiarid regions of Brazil and teak plantations in Southeast Asia.