1982] 
Darling — New Species of Krombeinius 
309 
Fig. 1. Krombeinius saunion, lateral habitus. 
Description: 
Head: supraclypeal area smoothly convex, without horn or ridge; 
scrobal cavity deep, extending to lower ocular line or to middle of 
clypeus; clypeus and supraclypeal area separated by distinct suture 
or by faint line; inner orbits carinate; frontal carina separating the 
median and posterior ocelli; malar sulcus absent; malar region with 
strong oblique costae; posterior ocellus located high on vertex, POL 
approximately equal to OOL; labrum with a single narrow stalk, 
expanded distally with 7 digits, each with a terminal seta, and with 
pair of sessile setae not associated with digits, strongly excised 
medially [n = 1, K. eumenidarum , Fig. 3], 
Mesosoma: dorsum of pronotum smoothly convex, without 
transverse elevations; pronotum massive, about one-third length of 
mesoscutum, not narrowed medially; mesothoracic spiracle located 
between pronotum and sidelobe of mesoscutum; postspiracular 
sclerite fused to the pronotum but delimited by surface sculpture; 
postspiracular sclerite less than one-half width of adjacent pronotal 
panel, with many or a single puncture; notauli distinct; scutellum 
vaulted, jutting over propodeum and base of metasoma; apex of 
scutellum acuminate, or truncate or with a distinct spine; propo- 
deum with median area foveate, or with a short median ridge, sub- 
