152 ENTOMOLOGICAL NEWS [April, '09 



carina which in the middle extends down around the fovea of the poste- 

 rior face. Metapleurae shining impunctate; posterior face finely punc- 

 tured; lateral ridges well defined. Legs and venation normal. Abdo- 

 men shining, microscopically punctured. Pygidium broad triangular, 

 punctured apically. Color black, mandibles (apices piceous), clypeus, 

 scape, pedalicum beneath, tubercles, two spots on pronotum, spot on 

 scutellum, four anterior legs below knees except a line within on middle 

 tibiae, posterior tibiae at the base and their tarsi yellow. Wings hyaline, 

 iridescent ; venation black. Usual silvery pile. 



Habitat. Falls Church, Va., July 14. (N. Banks). 



A distinct species, in Fox's table it runs to flairiclypeus Fox, 

 but that species has the enclosure of the metathorax "divided 

 by a very wide, longitudinal channel." 



Crabro (Epicrossocerus) universitatis n. sp. 



$. Length 4 mm; length of anterior wing 3 mm. Anterior margin of 

 the clypeus with a large lateral tooth ; medially produced into to a broad, 

 low lobe in the middle of which is an obtuse tooth. Seen from in front 

 there is a sharp tooth at each side of the clypeus, below the eye margin. 

 Seen from the side above the lower margin of the cheek, from the eye 

 outward, is strongly keeled; this keel is wavy on the outer margin 

 and presents three more or less distinct teeth. From lower ocellus ex- 

 tending downward to the clypeus and upward nearly to the occiput is a 

 distinct furrow. At the upper inner eye margin there is a distinct ovate 

 fovea. Ocelli in an equilateral triangle. Head shining, apparently very 

 finely punctured. Pronotum slightly, but sharply, keeled anteriorly; 

 angulate laterally, sides much straighter than usual. Dorsulum and 

 scutellum finely closely punctured, not so shining as the head. Meso- 

 plurae punctured like dorsulum ; a circular fovaea in about the middle ; 

 episternal furrow nearly straight, not very strongly foveolated. Meta- 

 thorax finely closely punctured, without an enclosed area or shining con- 

 vexities ; posterior face with a shallow rather broad fovea ; suture be- 

 tween the postcutellum and the metathorax strongly foveolated. First 

 rec. nervure in the middle of the first cubital cell. Anterior trochanters 

 broadened apically, not quite half as long as their femora ; posterior 

 tibiae serrate on outer margin; first joint of posterior tarsi about equal 

 to 2 plus 3 plus 4. Abdomen shining, impunctate. Pygidium narrowed 

 apically, excavated ; somewhat roughened. 



Black ; mandibles, except the rufous apex and scape, except above, 

 yellow. Tegulae and all the tibiae and tarsi testaceous ; the tibiae are 

 somewhat brownish. Wings hyaline, strongly iridescent ; venation black- 

 brown. Clypeus with silvery pubescence, insect otherwise nude. 



