226 
Annals of the Transvaal Museum 
remainder of fore wing, except the base and terminal area thickly irrorated with 
hair-brown; some black scales at terminal area and on cilia; hind wing thinly 
irrorated with hair-brown scales, most thickly at terminal half between veins 
3 and 6; some black scales here and there and on the cilia. 
Exp. 41 mm. 
Hab. Victoria Falls (S. Rhodesia), 26. 1. T8 (Janse). Only one specimen. 
This species has vein 6 of fore wing coming from the areole near base, but is 
otherwise typical. 
Genus PRIONOCENTRUM nov. 
(PI. X, figs. 18-22; PI. XI, fig. 1.) 
Type o’neili. 
3 , $. Proboscis absent; palpi upturned, reaching vertex of head, third joint 
obliquely porrect; first joint short, curved; second joint over two times first 
joint; third joint shorter than first; all joints with short hairs in front; first and 
second joints covered with scales; eyes large, rounded, naked; frons with dense* 
rather long hairs; antennae of $ a little over half of costa, curved, bipectinated 
till near tip; branches about 8 times shaft and densely ciliated all round; first 
joint with a tuft of hairs in front; antennae of $ less than half of costa, bipecti- 
nated till near tip, branches on inner side as long as breadth of shaft, inner 
branches two times; fore tibia of $ with slightly curved process, which is a little 
longer than the tibia; femora and tibiae moderately fringed with long hairs; 
first tarsal joints fringed with long hairs, other joints with moderate hairs; 
mid tibia with two spurs, hind tibia with four spurs, inner spur a little shorter 
than outer; spurs provided on apical half with two rows of teeth, which come 
together at the point, which is nearly straight; between the rows is a rounded 
groove; spurs covered with some hairs and scales; tarsi with some spines on 
inner side. Fore wing broad triangular and somewhat produced at apex; costa 
slightly hollow, well curved towards apex; apex nearly acute; termen some- 
what oblique and a little incurved below apex, then straight to vein 3, then 
well rounded at tornus; inner margin a little curved before middle; in $ the 
costa is slightly curved and the outer margin less incurved below apex ; 1 b very 
indistinctly forked at base; 2 from just beyond frd lower median; 3 from frd 
2 to 4; 4 from lower angle; 5 from just above middle of discocellulars which are 
oblique towards apex on upper part and has indications of veinlets in the cell ; 
6 from areole, which is long and narrow; 8, 9, 10 stalked and from end of areole; 
9 from before frd; 10 from frd of 8 beyond end of areole to apex; 11 from frd 
upper median; 12 parallel to costa. Hind wing triangular; costa slightly 
incurved ; apex well rounded ; termen oblique and very much rounded between 
2 and 7 and somewhat incurved between 1 b and 2 ; tornus rounded ; inner margin 
nearly straight, oblique; 1 a very long, straight; 1 b straight; 2 from frd lower 
median; 3 from fth 2 to 4; 4 from lower angle; 5 from just above middle of 
discocellulars, which are erect and evenly curved; 6 and 7 very slightly stalked 
and from upper angle; 8 upcurved near base, then downcurved and touching 
upper median before middle, but not anastomosing with it, then curved upwards 
and parallel to costa. 
PRIONOCENTRUM O’NEILI. 
(PI. XIV, fig. 16; PI. X, figs. 18-22; PI. XI, fig. 1.) 
Ground colour of fore wing, irr oration of hind wing, shaft and branches 
of antennae, fore legs in front, and patagia partly cinnamon -rufous (xiv); 
palpi in front cream colour (xvi) posteriorly fuscous (xlvi); frons and vertex 
- 
