Fossorial ITymcnoptcra of North America. bl 



pears. The % is more slender bodied, the two lunate bands do not 

 contract so much as in 9 • 



Philanthus solivagus. Say. 



9 . Head large, much as in large specimens of P. bilunatus, finely punc- 

 to-striated. striated on the front, below, a broad lunate yellow spot, and 

 between the antennae a triangular yellow small spot just above the base of 

 the clypeus. beyond and on the orbits, entirely yellow; two black dots on 

 each side of the middle of the clypeus. Mandibles yellow, black at tip. 

 Antennas with the middle joint of the scape yellow, base of the flagel- 

 lum reddish beneath, not black. Body usually dull colored, being 

 densely but finely punctured; prothorax yellow, thorax entirely black; 

 postscutellum black, propodeum densely punctured, a thin fine pale grey 

 hirsuties. Wings with pale ferruginous nervules, as usual. Two fore 

 femora black, tipped with yellow, extending inwards on the inside, tibiae 

 and tarsi yellow, hind tibia? shaded with black towards the tip ; tarsi 

 brownish, fuscous at tip, very spinulose. Abdomen smooth, not po- 

 lished much, minutely punctured, basal ring with a large broad contin- 

 uous yellow band, sides sinuate ; on succeeding segments a narrow 

 linear band, nearly meeting on the middle of the body, followed by 

 three broad continuous bands; tip with two yellow spots on each side, 

 fuscous on edges. Length, .52 inch. 



Conn., (Norton). " Maine," common in July and August, (Ray), 

 Brookline, Mass., (Shurtleff, Coll. B. S. X. H.). Milton, Harr., (Har- 

 ris Coll.). 



Allied more closely to P. bilunatus than any other species. It is 

 quite peculiar, with its dull colored minutely punctured body, its black 

 thorax and the dark hind tarsi. 



Philanthus ventilabris, Fabr. 



P. ventilabris, Fabr., Ent. Syst. Suppl. p. 208. (179S). 



"Coqueb. 111. Icon. p. 96, pi. 22, fig. 2." (1804). 



Say, Amer. Ent. pi. 49. (1S24.) 

 Anthophilvs vcrtilahris, Dahlb.. Hym. Eur. i. p. 497. (1845). 

 P. ventilabris, Smith, Cat. Hym. B. M. iv. p. 474. (18. 6). 



Cresson, Proc. v. p. 98. 



" X. Carolina," (Dahlb., Hentz., Coll. B. S. N. H.). Middle States, 

 Colorado Territory, (Coll. Ent. Soc. Phil.). « Cambridge," July 25, 

 Harris. (Coll. Harris). Northern Texas, (Norton). Texan specimens 

 do not differ from northern specimens. 



Philanthus frontalis, Cresson. 



P. frontalis, Cresson, Proc. v. p. 99. 

 Rocky Mountains. Col. Terr., (Ridings, Coll. Ent. Soc. Phil.). 



PROCEEDINGS ENT. SOC. PHILAD. MAY, 1S66. 



