92 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75 



having the ferruginous limited to a central spot on sternite 2 and 

 sternite 6, instead of having all the sternites ferruginous. The 

 female resembles the female of diver sip ennis, but is much smaller 

 and has a greater j^art of the frons black. The clypeus on the 

 female before me is entirely ferruginous. 



The female before me bears the label, " D. O. Afrika, Tabora, 

 7.08, "Wintgens S. G." The single male at hand bears the label 

 ''Bulawayo, S. Rhodesia, 13-4-1924, R. H. R. Stevenson." Hand- 

 lirsch reports this species from Cape of Good Hope, Port Natal, 

 and Transvaal. 



BEMBIX STEVENSONI, new species ,. 



Figures 19O-200 i 



2'ype (male). — Black: labrum; mandibles, except tips; sides of 

 clypeus; posterior orbits; narrow line on posterior dorsal border of 

 pronotum; narrow line on posterior margin of side of prothorax, 

 including posterior margin of tubercle ; small obscure spot at lateral 

 angle on side of propodeum; large lateral spots on first tergite 

 narrowed to a point toward middorsal line; continuous fasciae on 

 tergites 2-5, that on second bearing a pair of long narrow dorsal 

 spots not completely inclosed but continuous with the anterior black 

 border, those on 3-5 bisinuate on anterior dorsal margin; lateral 

 spots on sternites 2-5; femora in part; tibiae, except line below on 

 all; and tarsi; yellow. 



The greater part of clj'peus; anterior orbits; transverse series of 

 spots on frons below anterior ocellus; pair of spots above antennae 

 connected with orbits; spot between insertions of antennae; scape; 

 flagellum, except three apical segments ; small lateral spot on scutum 

 above base of wings; narrow obscure lateral spots on scutellum; 

 apical border of fifth tergite ; fascia on sixth ; apical portion of 

 seventh; large central area on second sternite; broad transverse band 

 on sternites 3-5 extending between lateral yellow spots; almost the 

 whole of sternite G; fenniginous. 



Segments 7-9 of the flagellum are slightly but plainly spinose 

 and segments 10-12 are entirely black, while, with the exception 

 of 9, which is black in part, the remaining segments of the flagellum 

 and the scape are a light ferruginous color. The middle femora 

 are smooth. The spur on the middle tibia is short, broad, and 

 thumblike. The middle metatarsus bears on its inner (lower) sur- 

 face a relatively large swelling or protuberance. The second sternite. 

 bears a prominently laterally compressed, pointed process, and the 

 sixth a prominent, flattened process whose apical margin is broadly 

 lounded. The seventh sternite is narrowed toward the apex, which 

 is roundly truncated and on its ventral surface it bears a pair of 



