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 and Leptofoenus. The species Doddifoenus wallacei is the largest known chalcidoid wasp, reaching nearly in length.
The first pelecinellid species known from the fossil record, Leptofoenus pittfieldae, was described in 2009 by Michael S. Engel from a specimen found in Dominican amber.