Uliobythus, ENGEL & GRIMALDI, 2007

ENGEL, MICHAEL S. & GRIMALDI, DAVID A., 2007, Cretaceous Scolebythidae and Phylogeny of the Family (Hymenoptera: Chrysidoidea), American Museum Novitates 3568 (1), pp. 1-16 : 7-9

Uliobythus , new genus

TYPE SPECIES: Uliobythus terpsichore , new species .

DIAGNOSIS: Minute wasps (less than 2.0 mm in total length). Head rounded; frontal prominence absent; clypeal apex straight; malar space more than one-half basal mandibular width; face lateral to antennal torulus flat; compound eyes large, encompassing most of lateral surface of head except for malar space; inner margins of compound eyes apparently very minutely converging below (frontal view of face not possible and thus this apparent convergence might be an artifact); ocelli arranged in equilateral triangle near upper tangent of compound eyes; occipital carina absent; pronotal collar absent, dorsal surface of pronotum shortened, at most 0.5 times as long as mesoscutum; propleura well developed, anteriorly forming a distinct neck; notauli present; prosternum large, exposed, broadly triangular posteriorly; parapsidal lines present; forewing with open marginal cell; Rs long, much longer than pterostigma, terminating near anterior wing margin, tubular over entire length; R 1 absent beyond pterostigmal apex; pterostigma relatively large, margin within marginal cell strongly convex; 1m-cu absent; Rs+M nebulous and evident only at extreme base; Cu distad separation from M nebulous and evident only at extreme base; no submarginal cells (only costal, radial, and first cubital cells closed); metafemur not flattened; tibial spur formula 1-1-1; pretarsal claws simple.

ETYMOLOGY: The genus-group name is a combination of oulios (Greek, ‘‘deadly’’) and – bythus (root of the type genus for the family, Scolebythus ). The name refers to the fact that these wasps are deadly parasitoids of wood-boring beetles. The name is masculine.