ˌselēˈänəˌdē noun plural
Usage: capitalized
Etymology: New Latin, from Scelion-, Scelio, type genus (probably from Latin scelion-, scelio scoundrel, from scelus crime) + -idae
: a cosmopolitan family of serphoid wasps that are mostly very small, dark, and shining, have elbowed usually 11-segmented or 12-segmented antennae, and include many economically important parasites of pest insects