48 Annals of the South African Museum. 



The mesothorax may be entirely black, or with three separated 

 marks; the pleurae may be immaculate, with one or two small dots, 

 or largely marked with black, especially behind. The metanotum 

 may be immaculate, or slightly or largely marked with black. In 

 one (? the metanotum is black except for a narrow line in the centre, 

 the metapleurae being entirely black ; in most examples the meso- 

 sternum is black. In one or two specimens (probably coccineus, Be.) 

 the thoi'ax is entirely immaculate. The abdomen may be entirely 

 longitudinally striated, or the basal three segments only ; the former 

 character being that of irahlbcrgi ; the latter oi i)ictiis. As a matter 

 of fact so much variation is shown in the strength of the striation 

 that it does not appear to afford a trustworthy specific character ; so, 

 too, there may be a distinct area on the base of the second abdominal 

 segment formed of raised striae, or there may be none. In the black- 

 headed specimens there is a narrow, more or less interrupted rufous 

 band round the eyes. 



The species is in the collection from Khodesia to the Cape. 



■■'• Iphi.\ulax varipalpis, sp. nov. 



Vermilion-red ; the antennae, apex of mandibles, of maxillte. 

 labial palpi, sides of prosternum, the middle of front, vertex and 

 occiput broadly, the mark obliquely narrowed from the ocelli to the 

 end of the vertex, that on the occiput narrow above, gradually 

 widened below. Wings dark fuscous, the costa and stigma red ; the 

 usual hyaline cloud in the first cubital cellule and below it outside 

 the recurrent nervure. Maxillary palpi pale testaceous-red. First 

 abdominal segment with a long, stout central keel. <? . 



Length 10-11 mm. 



Transvaal. 



Face and oral region covered with black hair. Apical slope of 

 clypeus yellow. Centre of first and the second abdominal segment 

 strongly closely striated, the third not so strongly and more ir- 

 regularly striated ; the fourth is obscurely shagreened at the base, 

 the others smooth, shining ; the lateral basal angles of the second 

 segment are smooth, broader than long, not much widened on the 

 outer side ; there is no area on the base. Suturifoi-m articulation 

 wide, deep, crenulated ; the second furrow is narrowed, almost inter- 

 rupted in the middle ; there is a similar furrow on the fourth 

 segment. There are narrow, crenulated furrows on the apices of 

 the third, fourth, and fifth segments. The transverse fm-rows do 

 not bifurcate distinctly at the sides. Lateral basal area of the sides 



