A REVISION OF THE ETHIOPIAN DREPANIDAE (LEPIDOPTERA) 4 y 



The males of confusa, disspinosa, ramosa, unispinosa and clenchi are apparently 

 almost identical externally. Because of this similarity in the males and the over- 

 lapping of ranges, I have been able to identify only unispinosa from the available 

 badly worn female material. Apart from the latter species, four groups of females 

 have been separated out, but the association of these with the corresponding males 

 has not been found possible. 



The species natalensis is polytypic. 



There is much variation in the ground-colour of both surfaces of the wings and in 

 the colour of the wing markings, particularly in the group of species mentioned 

 above which are externally similar to confusa. 



Negera is mainly restricted to the lowland rain-forest of central and west Africa 

 and the areas of montane forest in east Africa, but with some species also represented 

 in relatively moist woodland bordering the forested regions. The species bimaculata 

 and confusa are chiefly west African and confined to rain-forest or neighbouring 

 woodland ; ramosa and quadricornis occur in the Congo Basin and also in two 

 forested areas (one montane) in Uganda ; disspinosa and unispinosa are at present 

 only known from the rain-forest of Cameroun and the montane forest of Mt. Elgon 

 (Uganda) respectively ; natalensis has a much wider distribution extending from 

 Gambia and Senegal throughout the west and central African rain-forest regions to 

 Tanganyika (Arusha, edge of montane forest) and south along the east coastal 

 forest-savanna belt of Natal and Cape Province. 



Key to Species 

 Males 



A.P.R. 23 ; outer margin of hind wing produced at M 3 (Plate fig. 294) ; postmedial 



fascia of fore wing strongly lunulate ; medial fascia of hind wing arcuate anteriorly. 



Lateral arms of gnathus massive, membranous medial part of diaphragma small 



(Text-fig. 101) ......... natalensis (p. 63) 



A.P.R. 14-21 ; outer margin of hind wing not produced at M t ; postmedial fascia of 



fore wing straight or very weakly lunulate ; medial fascia of hind wing straight. 



Lateral arms of gnathus much less massive than above ; membranous medial 



part of diaphragma broad (e.g. Text-fig. 92) ....... 2 



Outer margin of fore wing nearly straight, apex weakly falcate (Plate 6, fig. 291) 



bimaculata (p. 62) 

 Outer margin of fore wing weakly convex, apex very weakly falcate or non-falcate . 3 



Valve strongly bifurcate (Text-fig. 92) ; ornamentation of aedeagus as in Text-fig. 



91 ; eighth tergite as in Text-fig. 93 .... quadricornis (p. 60) 



Valve not strongly bifurcate ; aedeagus not as above ...... 4 



Valve short, without spines or with single, short spine ; ornamentation of aedeagus as 



in Text-figs. 78 or 81 . . . . . . . . . . 5 



Valve elongate, with spines or elongate processes ; ornamentation of aedeagus not as 



above .............. 6 



Valve without spine; medial processes of gnathus long, pointed (Text-fig. 80) ; 



aedeagus as in Text-fig. 78 ; eighth tergite and sternite as in Text-fig. 79 



disspinosa (p. 53) 

 Valve with single, short spine ; medial process of gnathus short, blunt (Text-fig. 82) ; 



aedeagus as in Text-fig. 81 ; eighth sternite and tergite as in Text-fig. 83 clenchi (p. 55) 



