Pelecinellidae

Pelecinellidae is a small family of chalcidoid wasps, formerly treated as the subfamily Leptofoeninae within Pteromalidae. They, like many small chalcidoids, are brilliantly metallic.

The subfamily contains three genera, Nefoenus, Doddifoenus (with four species ) and Leptofoenus (with five extant species). The species Doddifoenus wallacei is the largest known chalcidoid wasp, reaching nearly 5 cm in length (including ovipositor).

The first pelecinellid species known from the fossil record, Leptofoenus pittfieldae, was described in 2009 by Michael S. Engel from a specimen discovered in Dominican amber.