224 Transactions of the South African Philosophical Society. 



Cerceris varicincta, sp. now 



Black ; the face, clypeus, a band on the apex of the third and 

 fourth abdominal segments, narrowest in the middle and the whole 

 of the fifth, pale yellow, the first segment and a mark on the side of 

 the second at the base, rufous. Antennae rufous, darker above. 

 Legs rufous, the four front tibiae pale yellow on the inner side, the 

 posterior broadly above ; hind tarsi blackish. Wings fuscous, 

 violaceous, the nervures and stigma black. 2 ■ 



Length 11-12 mm. 



Cape Colony. Dunbrody ; Pearston. 



Third joint of antennae not much longer than the fourth. Front 

 and vertex closely and strongly punctured, the face and clypeus 

 more sparsely and less strongly. Apex of clypeus broad, transverse ; 

 the face and clypeus covered with silvery pubescence. Hind ocelli 

 separated from each other by a less distance than they are from the 

 eyes. Thorax strongly punctured ; the punctures large and clearly 

 separated. Metanotal area smooth, raised, furrowed down the 

 middle. Abdomen strongly punctured ; the pygidium on the basal 

 half covered closely with broken, irregular, longitudinal striae ; the 

 apical irregularly, longitudinally, striated and rufous ; the incision 

 on epipygium about three times longer than wide, of equal width 

 and rounded at the base. 



Cerceris ruficauda, sp. nov. 



Black, the inner orbits broadly from the base of the antennae, 

 antennal keel, clypeus, cheeks, a spot, rounded at the base, trans- 

 verse at the apex, in the centre of the first abdominal segment, a 

 minute one on the apex of the- second, a broad band, roundly 

 narrowed in the centre, on the apex of the third, the centre of the 

 fifth broadly and the third ventral segment broadly, yellow. Tegulae 

 and legs bright red, the hind coxae black, their coxae yellow. Antennae 

 black, their basal five or six joints red. Pygidium red, broadly black 

 at the base. Wings hyaline, the radial and cubital cellules smoky- 

 violaceous ; stigma and nervures black. ? . 



Length 7 mm. 



Cape Colony. Stellenbosch ; Brak Kloof. 



The third antennal joint is as long as the scape and about one- 

 fourth longer than the fourth. Front and vertex closely and strongly 

 punctured. Hind ocelli separated from each other by a slightly less 

 distance than they are from the eyes. Face and clypeus strongly, 

 but not closely punctured ; the apex of the latter broadly rounded ; 

 black, mandibles red, black at the apex. Thorax strongly punctured, 



