190 
Annals of the Transvaal Museum. 
the rest is closely, distinctly punctured ; the metathorax is more densely 
covered with white pubescence than the rest ; the spiracles are oval. Female. 
Length, 7 mm. ; terebra, 3 mm. 
Bronkhorstspruit (E. Pretoria District). December. 
Covered with a minute white pile ; the head and thorax closely punc- 
tured, the latter more strongly than the former. Antennal scape testaceous 
below. Clypeus not clearly separated from the face, but with large foveae 
at the sides above. There is a smooth tubercle on the top of the face. 
The post-petiole is closely, but not very strongly, striated. 
Silavoga , gen. nov. 
Post-costal nervure with a short straight nervure, having a short 
curved transverse nervure on the top ; transverse median nervure received 
distinctly beyond the transverse basal ; the areolet distinctly appendicu- 
lated, the second nervure the longer and roundly curved ; the recurrent 
nervure received near the apex ; disco-cubital nervure unbroken, broadly 
roundly curved. Transverse cubital nervure in the hind wings broken 
above the middle. Metanotum with a narrow area extending from the 
base to the apex, and two large, wide lateral ones ; the spiracles curved, 
narrow, three times longer than wide. Clypeus not separated from the 
face, its apex broadly rounded. ' Basal slope of scutellum keeled ; the 
post-scutellum bordered by stout oblique keels. Abdominal petiole as 
long as the following two segments united, slender, the apical half thicker 
than the basal, the spiracles placed shortly beyond the middle. Mandibles 
bluntly edendate. Occiput and cheeks margined. Antennae long and 
slender, much longer than the body. Sheath of ovipositor projecting, 
large, broad, curved. Cerci longish. Abdomen broad, but compressed, 
the segments laterally becoming wider towards the apex. Legs slender, 
long, the hinder coxae two-and-a-half times longer than wide, the claws 
simple. 
This genus of Ophioninae may be easily known by the curious nervure 
on the post-costal, a nervure not found, so far as I know, in any other 
Ichneumon. It fits in best with the Campoplegini, but in my opinion a 
new tribe should be formed for it. 
Silavoga longicornis , sp. n. 
Luteous ; the tarsi darker coloured, the flagellum of antennae, tips 
of mandibles and stemmaticum, black ; covered with a short, white down ; 
the wings hyaline, the stigma pale testaceous, the nervures blackish, the 
disco-cubital and recurrent nervures largely bullated. Head closely, 
rather strongly punctured, the thorax not quite so strongly punctured, 
the scutellum not quite so strongly as the mesonotum. Flagellum of 
antennae densely covered with short stiff black pubescence. Female. 
Kourulene (Zoutpansberg District). August. 
Paniscini. 
Paniscus melanoctis, Llolm. 
Engenies Resa., Zool., VI, 411, 44 ; Tosquinet, Mem. d. 1. Soc. Ent. 
de Belgique, VI, 407 ; Cameron, Annals South African Museum, V, 101. 
Pretoria. March to November. 
