134 P- E. S. WHALLEY 



Generic description. Eyes without interfacetal hairs. Labial palps 3-segmented. 

 Proboscis present. Antennae minutely ciliate. Terminal margin of fore and hind wings 

 usually sinuous. Radial veins of fore wing from cell. Fore tibia with epiphysis. Hind tibia 

 with two pairs of spurs. Tarsi usually without spines. Male without gnathus. Female with 

 large patch of spines in bursa. 



Biology. No information. 



Key to the African Species of CORNUTERUS 



1 Fore wing brown with strong transverse striations. Terminal margin smooth. 



Tarsi with pair apical spines ...... palairantus (p. 136) 



- Fore wing sandy brown with grey-brown patches. Terminal margin sinuate. 



Tarsi without spines .......... 2 



2 (1) Female with broad duct. Two sclerotized signa in bursa (PI. 62, fig. 388). 



Indistinct grey fascia, generally not parallel to margin of hind wing 



paratrivius (p. 135) 



- Female with narrower duct. Single sclerotized signum (PI. 62, fig. 387). 



Several broad grey fasciae on hind wing running parallel to wing margin 



nigropunctulus (p. 134) 



Cornuterus nigropunctulus (Pagenstecher) comb. n. 

 (PI. 16, fig. 82; PI. 39, fig. 220; PI. 62, fig. 387) 



Siculodes nigropunctula Pagenstecher, 1892 : 109. 



Rhodoneura seriata Warren, 1897 : 20. (Syn. by Hampson, 1897: 617). 

 Rhodoneura nigropunctula (Pagenstecher) Hampson, 1897 : 617. 

 Rhodoneura nigropunctula (Pagenstecher); Dalle Torre, 1914 : 29. 

 Rhodoneura nigropunctula (Pagenstecher); Gaede, 191 7 : 365. 

 Rhodoneura nigropunctula (Pagenstecher); Gaede, 1929 : 491. 



o*. Wing, io*5-ii'5mm. Vertex brown; flattened, small tuft of scales over base of antennae. 

 Labial palps with second segment broad, third segment 1/2 length of second, upturned, reaching 

 above vertex. Thorax brown. Hind tibia with outer spur of distal pair slightly more than 1/2 

 length of inner spur. Hind tarsi without spines. Fore wing, pattern as in PI. 16, fig. 82, 

 grey-brown with darker median and subterminal areas showing on hind margin. Terminal 

 wing margin slightly concave below apex. Small discal black spot. Vein iA reduced. 

 Underside, pattern more clearly visible. Median and subterminal marks on hind margin black. 

 Costal margin alternately black and grey-brown. Hind wing, colour as fore wing, pattern 

 showing through from underside more clearly than fore wing. Anterior margin sinuate. 

 Underside with prominent subterminal and median fascia, basal area lighter. Hind wing 

 pointed, with sinuate margin below apex. Sc-\-R x and Rs free. 



Genitalia o* (PI. 39, fig. 220). Uncus simple. Gnathus absent. Valves narrowed 1/2 way 

 along length. Juxta large, with two broad arms, rounded at apex. Aedeagus with large patch 

 of strongly sclerotized cornuti. 



$. Wing, 13*5-25 mm. Colour and pattern as male. Underside, pattern well marked. 



Genitalia $ (PI. 62, fig. 387). Anal papillae short. Duct enlarged, minutely spined. 

 Sclerotized patch of spines from neck extending partially round bursa. 



Discussion. Some variation was found between the genitalia of the female 

 holotype and the females from West Africa. It is possible that the Nigerian speci- 

 mens may represent a subspecies. In South African specimens, the circlet of spines 

 on the bursa of the female are more slender than in the Tanzanian specimen. When 



