466 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 41. 



mesoepisterniim distinct, not foveolate, gently curved; propodeum 

 subequal in length with the mesonotum and metanotum combined, 

 spiracle place at the approximate middle, posterior face oblique, 

 sides as rest of thorax, dorsal aspect finely transversely striate; fore 

 tarsi differing scabrosa (see fig. 133) in that the apex of the basal 

 joint is strongly produced within and armed with a short spine, 

 apex of second joint somewhat produced; claws with two small inner 

 teeth, see figure 45; abdomen finely aciculate; shape of cubital cells 

 nearer figure 108 but the second recurrent is received near the apex 

 and the first well in the second cubital; first and second abcissae of 

 second cubital cell on cubitus subequal; radial cell similar to figure 

 102. Black; second, third and base of fourth segments red; very 

 little appressed pubescence this as well as the erect hairs black; 

 tibiae with silvery pile; wings basad of base of stigma yellow, apical 

 part and wing dusky; venation color of wings. 



In Kohl's table to the Pal^earctic species this runs out at catagory 

 26, but is near those species running to 29, and if sought for in this 

 group would run to lateritia. 



Federal District of Mexico. One female received from Prof. 

 Guillermo Gandara. 



Ty^pe—CoX. No. 14174, U.S.N.M. 



Family BEMBICID^. 

 Genus BEMBYX Fabrieius. 



Type. — Apis rostrata Lmnseus [designated Latrielle 1810]. 



Fabrieius origmally spelled his genus Benibyx, not Bemlex, and as 

 far as known never changed this spelling. Bembex Oliver et auctorum 

 will have to fall as a synonym of Beinbyx Fabrieius. 



BEMBYX PRIMA.ESTATE Johnson and Rohwer. 



Male. — Sufficiently like the female to be easily associated with it. 



The nearest ally of this species is spinolse Lepeletier, but the male 



may be distinguished by the different out- 

 line of the gentaha stipes, pale markuigs 

 of the pleurae, and from Handlirsch's fig- 

 ure of the antenna in having the seventh 

 joint with a sharp spine in the middle. The 

 markings are more yellow than is usually 



Fig. .3.- Apex of genitalia stipes ^he case in svinolx. The intermediate 



OF Bembyx prima^state John- „ i ■ j. 



SON AND Rohwer. lemor a are dentate. 



There is some variation in the extent of 

 the pale markings to the pleurae, and the apical dorsal segment may 

 be black or pale. The accompanying figure is made from the darker 

 of the specimens. 



