Plumalexius Brothers

Brothers, Denis J., 2011, A new Late Cretaceous family of Hymenoptera, and phylogeny of the Plumariidae and Chrysidoidea (Aculeata), ZooKeys 130, pp. 515-542 : 519

Genus Plumalexius Brothers gen. n.

Type species:

Plumalexius rasnitsyni Brothers, new species

Etymology:

The genus name, which is masculine, is derived from " Plumariidae ", to which it was first assigned, and “Alexandr”, the first name of Professor Dr Rasnitsyn, honoured in this Festschrift.

Diagnosis:

Male. Compound eye oval with convex inner margin; antenna with many long fine erect setae (number of antennomeres unknown); mandible with four apical teeth along truncate apical margin; maxillary palp at least 5-segmented; labial palp at least 3-segmented. Pronotum much shorter than mesoscutum, with slight anterior collar (flange) and posteroventral angle rounded; mesoscutum transverse; notaulus distinct, complete; tegula small, convex; metapostnotum apparently about as long as metanotum; propodeum long, weakly constricted apically; meso-metapleural suture straight. Hind wing with two closed cells, vein C present only basally, anal (vannal/plical) lobe less than half length of wing. Tibiae without spines or strong setae; tibial spurs 1 –2– 2; basitarsomeres much longer than other tarsomeres; arolia large; claws simple. Metasoma ovoid, sessile basally, apical tergum apparently simple, seventh sternum reduced, hypopygium simple with convex apex.

Female. Unknown.