A REVISION OF THE ETHIOPIAN DREPANIDAE (LEPIDOPTERA) 153 



postmedial fascia double, similar in colour to that of fore wing ; fringe brown. Under surface of 

 both wings pale brownish buff. Fore wing with trace of single, oblique line from near apex to 

 about two-thirds of distance along inner margin from base (this line does not correspond in 

 position with either line of postmedial fascia on upper surface). Hind wing with trace of single 

 postmedial line (corresponding in position with distal line of postmedial fascia on upper surface). 



Abdomen brownish white. 



cJ genitalia (Text-figs. 244-248) : processes of tegumen well sclerotized ; gnathus T-shaped, 

 medial part dentate ; valve without digitate basal process ; aedeagus tapered towards apex ; 

 posterior margin of eighth abdominal sternum emarginate medially. 



$. Similar to male but fore wing usually slightly more strongly falcate. The genitalia are 

 figured in Text-fig. 240. 



Measurements. A.P.R. : <J. 17 ; ?. Not known (no complete antenna, but probably 

 same ratio as 3). 



Discussion. The closest relative of this species is probably argyrobapta. In 

 serena the processes of the tegumen are more slender than in argyrobapta and there 

 is no digitate process at the base of the valve. Externally the shape and position 

 of the postmedial fascia on both fore and hind wings separate the two species. 



Individual variation is present in the coloration of the marking at the end of the 

 cell on the fore wing and of that part of both wings between the postmedial and 

 antemedial fascia (see description). There were two males and two females of the 

 dark-banded form in the material examined, all in the nominate subspecies. 



Distribution (Map 7). The subspecies nigeriensis occurs in Nigeria and 

 probably in Sierra Leone (see discussion of subspecies) and the nominate sub- 

 species in Cameroun, Central African Republic and the Congo. 



Material examined. Type. Holotype <$, Congo, Lusambo, 30.vii.1949 

 {Fontaine) ; Drepanidae genitalia slide No. 1212 ; in the Musee Royal de l'Afrique 

 centrale, Tervuren. 



Other material. (See below, under subspecies.) 



Callidrepana serena serena ssp. n. 



(Text-figs. 240, 244-246 ; PI. 16, fig. 338 ; Map 7) 



Diagnosis. £■ Separable from nigeriensis apparently only by the genitalia : the posterior 

 margin of the eighth sternum has a broader emargination and the aedeagus is more distinctly 

 swollen at the base (Text-figs. 244-246). 



$. As for male, genitalia as in Text-fig. 240. 



Measurements. Wing : $. 115, io-5-i4-o mm. (20) ; $. 14-0, i3'5-i5-o mm. (5). 



Distribution. Known from Cameroun, Central African Republic and the 

 Congo. 



Material examined. Type. (See species description.) 



Paratypes. Musee Royal de l'Afrique centrale, Tervuren. Congo : 2 $, 

 Lusambo, 20.vi, 3.vii.i949 (Fontaine) ; 1 <$, Tshuapa, Flandria, 20.xii.1947 

 (Hulstaert) ; 1 o\ Sankuru, Katako-Kombe, 16.xi.1951, (Fontaine) ; 1 $, Uele, 

 Paulis, 5. i. 1958 (Fontaine). Institut d' Enseignement et de Recherches tropicales, 

 Bondy. Central African Republic : 10 $, 2 $, Boukoko M'baiki, 6-2i.xi, 



