THYRIDIDAE OF AFRICA AND ITS ISLANDS 135 



more specimens are available this species will probably be divided into several 

 subspecies. 



Distribution. Map 52. Nigeria; Democratic Republic of the Congo; Tanzania; 

 Malawi; South Africa. 



Material examined. 



Holotype $ (nigropuncttdus) , Natal: BM slide no. 9713, in ZMB. 



Holotype $ (seriata), Tanzania: Dar-es-Salaam, BM slide no. 9962, in BMNH. 



Nigeria: i $, Old Calabar; Democratic Republic of the Congo: i J, Dungu, 

 Upper Uelle Distr., viii; Malawi: i <$, Mkuwadzi Forest, Nkata Bay, 5.V.1966, in 

 NMR; 1 o*> Zomba, xi.-xii.1923 (Janse), in TMP; South Africa: i $, Nelspruit, 

 ii.1918 (Breijer), in TMP; 1 <$, Sarnia (Curry), i.1914, in TMP; 1 <$, Sibase, Transvaal 

 [Janse), in TMP; 1 $, Hluhluwe, 9.XL1928 (Marley). 



Cornuterus paratrivius sp. n. 



(PI. 16, fig. 80; PI. 62, figs 388-390) 



$. Wing, 10-5 mm. Vertex orange-brown. Labial palps long, 2 X diameter of eye, third 

 segment almost as long as second. Frons produced slightly between eyes. Thorax orange- 

 brown. Hind tibia with distal pair of spurs almost equal in length. Hind tarsi without spines. 

 Fore wing, pattern as in PI. 16, fig. 80, pale sandy brown with darker fascia. Underside with 

 fascia prominent, almost black. Hind wing, colour and pattern as fore wing, terminal margin 

 slightly incised below apex. Sc+R 1 and Rs free. 



Genitalia $ (PI. 62, figs 388-390). Anal papillae short. Ostium broad and minutely 

 spined. First part of duct narrow, widening to heavily sclerotized part, covered with spines. 

 Large patch of spines in bursa, and one long Y-shaped sclerotized plate, the stem of the "Y" 

 forming a large, slightly curved spine in the bursa. 



o". Unknown. 



Discussion. Although this species is known only from two female specimens, it 

 is of interest for its similarity with Cornuterus trivius Whalley (comb, n.) from 

 Madagascar, which is also known only from the female. Both species have very 

 similar genitalia and external appearance. C. paratrivius can be separated from 

 C. trivius by the much larger spine in the bursa and the presence of spines on the 

 neck and first part of the bursa in paratrivius. The spines in the bursa of C. trivius 

 are mainly on the middle of the bursa. The wing shape of both species is similar to 

 C. nigropuncttdus. Further material will be needed to determine the exact re- 

 lationship of these species. 



Distribution. Map 52. Cameroon. 



Material examined. 



Holotype $, Cameroon: Bitje, Ja River, x., wet season (Bates), BM slide no. 

 10608, in BMNH. 

 Paratype. Cameroon: i $, Efulen, 11.xi.1918 (Weber), in CMP. 



Cornuterus trivius (Whalley) comb. n. 

 Hypolamprus trivius Whalley, 1967 : 36, figs 9, 74. 



Distribution. Madagascar. Map 52. 



