The oldest species of Pompilidae to date, a new fossil spider wasp (Hymenoptera: Pompilidae)

Twenty-three fossil species within 14 genera have already been assigned to Pompilidae, five of these genera are extinct. The oldest described fossil species of spider wasp denotes a late Eocene origin of the group, although the family has been already reported from the early Eocene. Herein, we describe a new species of spider wasp from the Fur Formation, Denmark, the first species described from the Ypresian age. Cryptocheilus leleji sp. nov. is...