HYMENOPTERA FROM LOWER CALIFORNIA. 99 



rowed at the top, receiving the recurrent nervure a little 

 beyond the middle ; the cheeks possess some long white 

 hairs. Length, 9 mm. 



$ . — Differs from the ? by the short, stout antennce, the 

 first joint of flagellum being but little longer than the sec- 

 ond, by the white calcaria and spines of tibial and tarsi, 

 and by having the base of the third and the last dorsal 

 segment entirely, whitish; only the apical part of the hind 

 femora and basal half or two-thirds of their tibia?, red- 

 dish. Length, 7 mm. 



San Jose del Cabo, October, Three specimens. Closely 

 related to posterus Fox and exacttts Cam. From the former 

 it differs by the lesser distance between the eyes at the 

 top and the narrower third submarginal cell; from the 

 latter species it differs chiefly by the hind ocelli being 

 more widely separated from each other than they are 

 from the nearest eye-margin; and moreover the four an- 

 terior legs are black. The 3 is evidently the " small 

 form " mentioned by Cameron under the description of 

 exactus. 



PoMPiLus coRuscus var. juxta Cress. Five ? and 

 3 3 specimens. San Jose del Cabo, October. 



PoMPiLUS INTERRUPTUS Say. San Jose Cabo, Octo- 

 ber. One 5 specimen. The coloration of this speci- 

 men agrees better with the description P. balteatiis C2in\., 

 than interriiptiis, but the fore margin of clypeus is not 

 incurved. 



POMPILUS ^Quus n. sp. 



$ . — Bluish-black; clypeus black, planate, finely and 

 sparsely punctured, subtruncate anteriorly; just above 

 the base of antennse there is a short longitudinal im- 

 pressed line; eves, if anything, slightl}^ diverge towards 

 the vertex; hind ocelli separated from each other by a 



