Some New Genera and Species of Hymenoptefa. 235 



have an indistinct one between them. Flagellum stout, the joints 

 longer than broad except the penultimate. 



The front is more strongly punctured than the vertex ; there is a 

 narrow keel down its middle. The eyes distinctly converge below ; 

 there is no malar space. 



Prosopis 5-lineata, sp. nov. 



Black, shining, a narrow line on the outer and inner eye orbits 

 and a slightly narrower one down the centre of the clypeus, pale 

 yellow ; wings smoky-hyaline, the nervures and stigma black. ? . 



Length 7 mm. 



Cape Colony. Stellenbosch. 



Face and clypeus distinctly, but not closely punctured, the punc- 

 tuation on the apex of clypeus closer and stronger. Front strongly 

 keeled ; the centre with a bordered keel which bifurcates above. 

 Malar space small. Labrum strongly punctured. Thorax shining ; 

 the mesonotum and scutellum smooth ; the metanotal area strongly, 

 closely aciculated ; on the apex is a large, deep fovea, wide below, 

 gradually narrowed above. Pleurae thickly covered with longish 

 white pubescence ; the tubercles behind bordered by a dense band 

 of white pubescence. The hair on the ventral surface is dense and 

 white. The apical dorsal segments covered with black hair. The 

 pubescence on the tibiae and tarsi long, dense, and grey. Both the 

 recurrent nervures are received in the second cubital cellule ; the 

 first at a greater distance from the base than is the second from 

 the apex. The base of the thorax is rounded above. Third joint 

 of antennae fully twice the length of the fourth ; the joints not very 

 sharply separated. 



Gen. COLLETES, Latr. 



COLLETES? CAPENSIS, Sp. 110V. 



Black ; the head, thorax, and, to a less extent, the abdomen, 

 densely covered with longish clear white hair, the hair on the 

 scutellums long and more fulvous in tint ; the wings clear hyaline, 

 the nervures and stigma black ; the basal ventral segment dilated, 

 broadly roundly incised in the centre; apex of mandibles piceous. $ . 



Length 7-8 mm. 



Cape Colony. Pearston. 



Front and vertex closely rugosely punctured, a keel below the 

 ocelli. Clypeus smooth, more shining, as strongly, but not so 

 closely, punctured as the front. Labrum smooth and shining, 

 furrowed in the middle. Mandibles keeled down the middle and 

 on the sides, the three keels not reaching to the apex. Pro- and 



