A new species of spider wasps (Hymenoptera: Pompilidae) from Panama: Mystacagenia kimseyae sp. nov.

Mystacagenia Evans, 1973 is a strictly Neotropical genus of pompilid wasps (Pepsinae: Ageniellini), restricted to rain forest areas. The genus comprises four described species: M. albiceps Evans, 1973 (Peru, Brazil), M. bellula Evans, 1973 (Peru), M. variegata Evans, 1973 (Brazil), and M. elegantula Evans, 1980 (Panama). Mystacagenia is scarce in collections, with only eight specimens registered, all of these females (Evans 1973, 1977, 1980; Cambra 1993; Corro Cambra 2011).

A New Genus and Species of pompiline Spider Wasp from Northern South America (Hymenoptera, Pompilidae: Pompilinae: Priochilini).

Pompiliodon gen. nov. and its type species Pompiliodon katina sp. nov. are described and illustrated. The relationships to related genera (Priochilus Banks, 1944 and Balboana Banks, 1925) are discussed.

A new species of Priochilus Banks, 1944 (Hymenoptera, Pompilidae, Pompilinae) from Panama.

Priochilus chrysopygus Wasbauer, Cambra & Añino sp. nov. based on both sexes is described and illustrated. This new species is related to P. splendidulus (Fabricius). A short synopsis of biology in the genus Priochilus is given.