134 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75 



SPECIMENS EXAMINED 



Brazil: Diamantinas, Minas Gereas (November 14-18, 1919, Cornell Universitj 



Expedition ) . 

 R[Exico: Atencingo (June 1, 1922, E. G. Smyth) ; San Rafael, Jicoltepec; 



Tuxpan, Jalisco (September 3, McClendon). 



Handlirsch reports this species also from Guatemala ; Demerara ; 

 Bogota ; and Monta, Peru. 



BEMBIX FLAVOLATERA, new species 

 Figures 94, 95 



Tyj>e (male). — Black: labrum; mandibles, except tips; lower part 

 of frons prolonged by a narrow line upward to meet a transverse 

 series of three spots below anterior ocellus; broad anterior orbits 

 shortened above ; scape below ; posterior orbits narrowed above ; pro- 

 thorax except narrow line in front of tubercles; broad lateral lines 

 and pair of conspicuous discal lines on scutum; triangular lateral 

 spots on scutellum; minute lateral spots on metanotum; sides of 

 propodeum (but not lateral angles) ; large spot on metapleura; meso- 

 pleura almost entirely; fasciae on tergites 1-4 interrupted, those on 

 5 and 6 continuous ; fascia on first tergite narrowest and most widely 

 interrupted; fasciae on tergites 2, 3, and 4 broadly bisinuate on 

 anterior dorsal border ; fasciae on 5 and 6 acutely emarginate at mid- 

 line on posterior border; second sternite, except narrow median line 

 terminating on anterior border of tubercle and small pair of basal 

 lateral black spots; third and fourth sternites almost wholly; broad 

 fascia on fifth ; apical fascia on sixth ; coxae and trochanters more or 

 less; femora, except black line on posterior surface of first pair 

 and basal part of third ; tibae, except narrow line above on all ; and 

 tarsi ; yellow or white. The white is limited to the apical fascia on the 

 sixth sternite and to the fasciae on the tergites, of which those on 

 tergites 1-3 show traces of yellow on their anterior margins, and 

 particularly at the sides. 



The flagellum is black above but light colored below, and while 

 some of the segments show specialized areas, none of them are exca- 

 vated or spinose. The terminal segment is only slightly curved and 

 at the apex is roundly truncate. The second sternite bears a large, 

 median tubercle or process, whose apex is curved posteriorly and 

 sharply pointed. The sixth sternite bears a broad triangular raised 

 urea, whose apex on the median line can scarcely be called a point. 

 The middle femora are plain. The anterior metatarsus bears seven 

 spines, of which the basal one is small. The wings are hyaline and 

 the second abscissa of the cubitella is lacking. The pubescence on 

 head, thorax, propodeum, and base of abdomen is white and some- 

 what longer than is usually the case in this genus. The form of the 



