470 Mr. Cameron on 



POMPILUS UNIFASCIATUS, Sm. 



A specimen in Mr. Rothney's collection is thus named 

 by Smith. The type has the head entirely yellow ; but this 

 example has a broad black band on the vertex and front. 

 Head convex in front, transverse, with the sides rounded 

 behind. Ocelli almost in a triangle, the posterior separated 

 from the eyes by about the same distance that they are 

 from each other ; eyes arcuate above, beneath parallel ; 

 clypeus transverse at the apex, the sides obliquely rounded. 

 Prothorax shorter than the head,the sides rounded, narrowing 

 towards the head ; behind arcuated, bluntly angled in the 

 centre ; there is a furrow in the middle of the pronotum. 

 Legs sparsely spinose ; the spines long ; the long spur of the 

 hind tibiae reaches beyond the middle of metatarsus. The 

 second recurrent nervure received in the apical third of the 

 cellule ; the anal in hind wing received beyond the termi- 

 nation of the cubital. 



POMPILUS ELECTUS, sj?. nov. (PI. III. f 1 5). 



Black ; the basal two and the greater part of the third 

 segment red ; the greater part of the front and the base of 

 the four posterior tibiae reddish ; the tarsi inclining to 

 fuscous ; wings hyaline, a small band along the basal 

 nervure, and a broad one extending from the base of the 

 stigma to the third transverse cubital nervure, fusco- 

 violaceous. Head as broad as the thorax ; moderately 

 convex in front, almost transverse behind. Eyes broadly 

 arcuate above, almost diverging below ; ocelli hardly 

 forming a triangle, separated from each other by a 

 slightly greater distance than they are from the eyes. 

 Clypeus projecting a little ; the sides oblique, straight, the 

 apex bluntly rounded. The head closely punctured ; the 

 clypeus and cheeks densely covered with silvery pubescence, 

 the frontal furrow indistinct. Antennae longish, filiform. 



