AST. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 121 



BEMBIX FLAVESCENS Smith 



Bembex flavescens Smith, Cat. Hym. Ins. Brit. Mus., vol. 4, 1856, p. 321. — 

 Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893, p. 

 862.— Dalla Torre, Cat. Hym., vol. 8, 1897, p. 504. 



Of this species I have before me two specimens, a male and a 

 female, received by the United States National Museum in an ex- 

 change, but by whom they were determined is not shown. They agree 

 quite closely with Handlirsch's description of the species. The male 

 differs from Smith's description of the male only in the absence 

 of discal lines on the scutum. They bear a common label, " Gomera 

 (Canar. Ins.), Hintz V. 15. IV. 98." This species has been reported 

 only from the Canary Islands. 



I BEMBIX CONNEXA Fox 



Bemhex connexus Fox. Proc. Acad. Nat. Sci. Pliila., 1895, p. 360. 

 Bembix connexa Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 115. 



In the collection of the United States National Museum are six 

 females that I have referred to this species. They are large and 

 robust with the maculations bright greenish yellow. In this respect 

 they differ from Fox's type, on which the fasciae on the tergites are 

 whitish. They agree with the type, however, in having the sides of 

 ihe thorax and propodeum extensively maculated, while having the 

 scutum, scutellum, metanotum, and dorsum of propodeum either 

 entirely black or with only minute lateral spots on the scutum and 

 scutellum. The male is known only by the single specimen on which 

 Fox based his description of the male of the species. The yellow 

 color of this male is similar to that of occidentalis. The middle 

 femur is strongly dentate below; segments 7-10 of the flagellum are 

 slightly, though evidently, spinose, "segments 7 and 8 being more 

 prominently so ; the processes on sternites 2 and 6 are well developed 

 and pointed; and there are evident rounded lateral ridges on the 

 basal half of the sixth sternite, but they do not constitute lateral 

 processes. The maculations on the dorsum of the thorax and 

 propodeum are somewhat more extensive than on the female. 



.SPECIMENS EXAMINED 



California: Los Angeles County (July, Coquillett) ; Mariposa County (Coquil- 



lett) . 

 Nwada: Reno (July 26, 1889, F. H. Hillman). 

 Utah : South Creek, Beaver County. 



BEIVISIX LATIFRONS Parker 



Bcnibix latifrons Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 116. 



This species is not represented at the United States National 

 Museum. It is known only from the type (female) in the collec- 

 tion of the University of Kansas. 



