Chrysididae
Guides
Parnopini
cuckoo wasps
Parnopini is a small tribe of cuckoo wasps in the family Chrysididae, comprising three genera and approximately 20 described species. Members exhibit the kleptoparasitic lifestyle characteristic of chrysidid wasps, laying eggs in the nests of host wasps. Host associations are poorly documented; only the genus *Parnopes* has known hosts, which are crabronid wasps in the family Crabronidae. The tribe includes the genera *Parnopes*, *Cephaloparnops*, and *Isadelphia*.
Pseudomalus
cuckoo wasps, jewel wasps
Pseudomalus is a genus of cuckoo wasps (family Chrysididae), commonly known as jewel wasps for their brilliant metallic coloration. Species in this genus are kleptoparasites that exploit the nests of solitary wasps and bees. A distinctive behavioral trait involves females ovipositing into aphids, which are then captured by crabronid wasps and carried to their nests—indirectly delivering the cuckoo wasp larva to its eventual host. The genus includes both Palearctic natives and at least one introduced species (P. auratus) now established in North America.