ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 97 



Both species have the middle femora dentate below, the second and 

 sixth sternites without processes, and the seventh sternite with a pair 

 of widely separated carinae that diverge basally. The male geni- 

 talia of this species differ widely from that of U-seii'pta. The two 

 species also differ in the character of their maculations. 



specimens examined 

 Kansas. 



New Mexico: Mesilla (June 26, 1897, Cockerell). 

 Texas: Cotulla (May 11, 1900, J. C. Crawford). 



P" 



BEMBIX U-SCKIPTA Fox 



Figure 218 



Bembex U-sonpta Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 362. 

 Bemhiw U-scrlpta PAEKBai, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 8.3. 



In the collection of the United States National Museum tliere is 

 a single specimen of this species, a male, bearing the designation 

 " Type," but by whom so marked I do not know. It bears the label 

 " Tucson, Arizona, Coll. Ashmead," and since Fox based his de- 

 scription of the species in part on material collected at Tucson by 

 Ashmead it is quite probable that this is a male from the group on 

 which Fox based his description. Fox also had some material from 

 California, and I have identified specimens of this species from New 

 Mexico. It is closely related to the preceding species {Beiiibix asrcuata 

 Parker) , with which it agrees in its most prominent structural char- 

 acters, as set forth in the discussion of that species. 



I BEMBIX VELOX Handlirsch 



Bembex velox Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 

 102, 1893, p. 819. 



Handlirsch described this species from a single male from Zanzibar, 

 Africa. I have before me one male and six females that I have, after 

 corusiderable hesitation, referred to this species. With respect to the 

 character of the antennae, the middle femora, the processes on the 

 second and sixth sternites, and the genitalia, this male agrees with 

 the description and figures given by Handlirsch for Bemhix velox. 

 It differs from the description of that species, however, in having the 

 wings clear and in having a pair of minute black spots on the clypeus. 

 The form of the seventh tergite differs slightly from that shown in 

 Handlirsch's figure of the seventh tergite of velox. Since Handlirsch 

 had but a single individual from which to write his description, the 

 variations within the species Avere unknown to him, and it seems to 

 me that the differences noted above are well within the limits of 

 variation possible within a species. 



The females in general form and appearance resemble very 

 closely the male with which I have associated them. They differ 

 22764—29 7 



