Annals of the Transvaal Museum. 
161 
Front of the head weakly and sparsely, the outer orbits much more 
strongly and closely punctured ; the clypeus smooth, a little longer than 
it is wide ; the apex with a shallow, rounded incision ; thorax closely 
punctured, the metapleurae finely, closely, obliquely striated, except at 
the base ; there are some scattered punctures ; the first and second trans- 
verse cubital nervures approach closely in front ; head and thorax densely 
covered with white pubescence, which forms a longish fringe on the apex 
of the metanotum laterally ; there is a small triangular tooth on the centre 
of the hind coxae behind ; antennal spine, long, stout, and curved. 
Rhynchium perfidiosum , sp. n. 
Deep black ; the underside of the flagellum of the antennae dark red ; 
the second and following segments of the abdomen light, reddish brown ; 
wings uniformly fuscous- violaceous. Female. 
Length, 14 mm. 
Waterkloof. December. 
Clypeus a little longer than wide, sparsely, weakly punctured, the 
apex transverse ; the upper part of the head and the thorax closely 
punctured ; post-scutellum prominent, the apex bluntly striated ; the 
first abdominal segment is cup-shaped ; the second is as long as broad, 
smooth ; claws testaceous. 
The male has the clypeus yellow, tinged with testaceous ; it is as wide 
as long and has the apex transverse ; the antennae are reddish testaceous, 
dark fuscous above ; there is a large black mark, obliquely widened above, 
on the basal two-thirds of the second segment ; in both sexes there is a 
large, semicircular depression on the basal half of the second ventral 
segment, rounded, with a slight incision in the centre ; it becomes gradually 
narrowed from the top on the apical slope ; metanotum bluntly rounded ; 
the lower edge bears two blunt teeth, united below ; shortly beyond these 
is a stout keel ; the scutellums are alutaceous, impunctate ; the base and 
the apex more narrowly of the mesopleurae are smooth ; the centre is more 
deeply and closely punctured than the mesonotum ; the metanotum is 
more strongly, more rugosely punctured than the mesonotum ; the centre 
is closely, not very strongly punctured. 
Rhynchium stironoium, sp. n. 
Head and thorax dark ferruginous, a curved transverse line across 
the ocellar region, reaching to the eyes, roundly, bluntly, shortly dilated 
in the middle behind, and more longly and narrowdy in front ; the lower 
and larger part of the mesopleurae and the whole of the metapleurae, 
black ; abdomen orange-yellow ; antennae rufous, the apical two or three 
joints above ; legs dark red, the tarsi lighter coloured ; wings fuscous 
violaceous; the stigma and nervures biack. Female and male. 
Length, female 14 mm. ; male 13 mm. 
Waterfontein. November. Zoutpansberg. 
Clypeus, except above, strongly, but not closely punctured , the 
apex with a rounded incision, the outer edges forming triangular teeth ; 
the upper part of the head and the thorax closely, rather coarsely 
