1895.] NATURAL, SCIENCES OF PHILADELPHIA. 361 



on apical portion; stipes of genitalia as in fig. 3, Plate XIV. Length 

 16 mm. 



Utah. Its large size, thoracic markings, and broad markings 

 of abdomen serve to distinguish this species. The stipes of the S 

 genitalia is different from that of the other species. 



10. Bembex cinerea Hell. 



Bembex cinerea Handlirsch, 1. c. p. 837, PI. II, f. 34, PI. Ill, f. 29, £ $ . 



I have only seen this species from Georgia, the type locality. 

 When viewed from above the males appear to have the abdomen 

 entirely black, but when held a little on the side the small lateral 

 spots are seen. 



11. Bembex nubilipennis Cress. 



Bembex nubilipennis Cresson, Trans. Am. Ent. Soc. IV, p. 218, $ £ ; Hand 

 lirsch, 1. c, PI. II, f, 38, PI. VII, f. 25. 



Texas; Louisiana; Illinois, and Missouri (Handlirsch); Kansas; 

 Nebraska; Colorado. 

 10. Bembex pruinosa n. sp. Plate XIV, f. 6. 



9 . — Black, the- head, thorax and first segment of abdomen 

 densely clothed with a pale grayish pubescence, the abdomen with a 

 thin, appressed pubescence; inner and posterior orbits, spot between 

 antenna?, scape and flagellum beneath, clypeus, labrum, mandibles 

 except apex, narrow line on pro- and metanotum, line on hind 

 margin of scutellum, sometimes wanting or represented by a lateral 

 spot only, curved line on upper surface, and a spot on sides of 

 middle segment, either of which or both may be absent, sides of pro- 

 thorax, in part, rarely, femora except heavy line above and some- 

 times the base beneath, tibia? entirely or with a dark spot internally, 

 and tarsi yellowish; dorsal segments 1-5 of abdomen with a broad, 

 uninterrupted band, and a spot at each side of ventrals 2-5, greenish- 

 white; wings hyaline; eyes diverging beneath. Length 17-18 mm. 



$. — Similar in coloration to the 9> except that the last dorsal 

 segment is spotted; joints 6 and 7 of flagellum slightly dentate; 

 medial femora not serrate, entire; second ventral segment not dentate 

 or tuberculate, the seventh with two short, somewhat parallel 

 carina?, eighth produced into a bifurcated spine at apex; stipes of 

 genitalia as in fig. 6, Plate XIV. Length 17-18 mm. 



Oregon; Kansas; Texas; Camden county, New Jersey (July 22). 

 This is easily distinguished by its markings and male characters. 



