REVISION OF GENUS ZAMARADA 205 



Externally one of the most distinctive species in the genus, the colour and pattern 

 being diagnostic. 



It is with pleasure that I name this species in honour of Dr Harry K. Clench 

 of the Carnegie Museum in Pittsburgh in token acknowledgement of his generous 

 help, with the loan of very rich material from Cameroun and his placing at my 

 disposal a key to the West African species which he had prepared. 



Distribution. Cameroun, Gabon, Zaire, Uganda. 



Holotype $, Cameroun ('Kamerun'): Efulen, 7.1V.1923 (H. L. Weber), in CM, 

 Pittsburgh. 



Paratypes. Cameroun: Massif du Manengouba, Piste Bakwat-Mwakoumel, 

 1240 m, n-12.iv.1970, 1 cf; Mont Kala, 18 km W. de Yaounde, 1120 m, 20.iv.1972, 

 2 (J, 1 $; N'Kolbisson, 7 km W. de Yaounde, 700 m, 15-21.iv.1972, 12 <J, 1 $ (all 

 C. Herbulot, in coll. Herbulot, Paris); Nkoemvom pres Ebolowa, 18. iv. 1970 

 (C. Lemaire), 2 <$; M'Balmayo, Ecole forestiere, 11. iv. 1970 (P. Darge), 1 <$ (all 

 coll. Herbulot, Paris); Efulen, ii-iv (H. L. Weber), 18 <£; ibidem, x-xii, 3 $ (all 

 CM, Pittsburgh); Epulan, iv-v (G. Schwab), 2 $ (BMNH). Gabon: Makokou, 

 5.xi.i962, 1 <$; Confluent Ivindo et Ie, 23.x. 1963, I <J; Savanes Mwadi, pres du 

 lezc, 16.iii.1963, 1 £; Belinga, Grande Crete Sud, 900 m, 29. hi. 1963, 1 $; Belinga, 

 N. Crete Sud, 1000 m, 19.iii.1963, 2 <J; ibidem, 29.iii.1963, 1 o (all G. Bernardi, 

 in MBG, Paris); Mouila, ix-x (P. Darge), 2 °- (coll. Herbulot, Paris). Zaire 

 ('Belgian Congo'): Uele, Paulis, 25.vi.1956 (Dr M. Fontaine), 1 $ (MRAC, 

 Tervuren). Uganda: Bwamba, Toro, ix. 1961 (N. Mitton), 1 <$ (NMK, Nairobi). 



Zamarada acrochra Prout 

 (Text-figs 339, 340; PI. 73, figs 743, 744; PL 115, fig. 1041) 

 Zamarada acrochra Prout, 1928 : 70. Holotype <J, Senegal (BMNH) [examined]. 



(J § (PI. 115, fig. 1041). Closely similar to dilata, but slightly smaller in wing-span; hyaline 

 area of wings almost colourless, lacking the distinct yellow tinge of that species; non-hyaline 

 terminal area a more vinaceous brown (pi. 9, D4, reddish brown); discal spot on upperside 

 of fore wing grey, usually more diffuse than in dilata and on underside dark brown, more 

 heavily marked. Underside of non-hyaline terminal area dark brown, paler terminad, the 

 paler area on each wing more evenly defined than in dilata, lacking the conspicuously contrasted 

 pale apical area of that species. 



Male hind tibia dilate, with tuft of long, buff hair-scales, tuft almost equal in length to 

 tibia. 



(J genitalia (Text-figs 339, 340). Differ from those of clenchi in the shorter valve, the apex 

 of which is broader and less boldly incurved towards the uncus; in the form of the aedeagus, 

 which is broadly dilate medially with a curved ridge of short spines at one side and in the 

 slightly shorter fulcrum, which is just less than twice as long as the aedeagus. 



$ genitalia (PI. 73, figs 743, 744). Distinguished from dilata by the slender, acicular 

 projections from each side of the posterior margin of the lamella antevaginalis. 



Measurements. Fore wing: <^§ 14-18 mm. Antennal pectinations: <J 10 x,$3 X diameter 

 of shaft. 



Distribution. W. Africa, Senegal to Angola; Tanzania. 



