252 ENTOMOLOGICAL NEWS. [June, '08 



no furrow from middle ocellus ; clypeus produced in middle into a 

 truncated process, the width of which is equal to the distance be- 

 tween the eyes at the clypeus; middle carina strong; mandibles 

 bifid at apex, with three inner teeth, the first tooth small; first joint 

 of flagellum equal to 2 and 3; pronotum not strongly ridged an- 

 teriorly, but feebly so, not dentate laterally, anterior face smooth ; 

 when seen from in front there is a U-shaped fovea at the top in the 

 middle ; dorsulum finely densely punctured posteriorly, finely striato- 

 punctate posteriorly; scutellum punctured anteriorly, longitudinally 

 striated posteriorly ; meso-pleurse strongly transversely striated ; meso- 

 pectus smooth with large scattered punctures ; dorsulum of meta- 

 thorax finely obliquely striated from center; sides and posterior face 

 of metathorax finely transversely striated; middle furrow strong, 

 distinctly foveolate on posterior face ; femora stout, triangular in 

 cross-section; anterior femora with a strong keel on inner posterior 

 margin, outer margin of middle and posterior tibiae with a number 

 of stout spines ; dorsulum of abdomen densely finely punctured, the 

 punctures on the first segment larger and more separated; venter of 

 abdomen microscopically punctured; apical margin of each segment 

 with a row of large punctures ; pygidium strongly margined, strongly 

 depressed and narrowed apically; sides of pygidium with a fringe of 

 testaceous hair. Color black ; elongate spot on mandibles, scape en- 

 tirely, two spots on pronotum, tubercles, apex of femora, tibiae ex- 

 cept a black spot within on the anterior four (tarsi dull testa- 

 ceous), elongate spots on sides of first three abdominal segments above 

 (those on the third largest and almost meeting, those on the first 

 small and well separated), broad band fourth and fifth segments above, 

 yellow; tegulse rufous; wings dusky hyaline; nervures, costa and 

 stigma pale brown. Middle of clypeus with golden pubescence ; sides 

 of clypeus, lower inner orbits, posterior orbits, lower part of thorax 

 with silvery pubescence. 



Habitat Florissant, Colo., June 26, 1907 (S. A. Rohwer). 



In Fox's table (Crabroninse of N. Amer.) this species runs 

 near montanus Cress., but it may be known from all of that 

 group by the different sculpture, larger size, fringe at side of 

 pygidium, etc. Disregarding the structure of the clypeus it runs 

 to trifasciatus, but is at once known from this by the ocelli being 

 in a lower triangle. 



Crabro ( Thyreopus) brachycarpae n. sp. 



$ . Length 7 mm. ; length of anterior wing 5 mm. Head about 

 as wide as thorax, finely densely punctured, cheeks without tooth or 

 keel; ocelli in about an equilateral triangle, the distance between the 



