24 A. WATSON 



light brown, light or dark reddish brown. The spots and fasciae may be well 

 marked or hardly discernible. 



Distribution (Map i). Angola and the Congo. 



Material examined. Type. Holotype <$, Angola, Quicolungo, 120 km. N. of 

 Lucala, iv.1936 (Braun) ; Drepanidae genitalia slide No. 1145 ; in the British 

 Museum (Natural History). 



Paratypes. British Museum {Natural History). Angola: 3 <J, Quicolungo, 

 120 km. N. of Lucala, 800 m. (Braun) ; 2 g, N'Dalla Tando, 2,700 ft., 24. xi. 1908, 

 20J.1909 (Ansorge). Musee Royal de I'Afrique centrale, Tervuren. Congo : 1 <$, 

 Uele, Paulis, 27.viii.1959 (Fontaine). 



Epicampoptera difficilis Hering 

 (Text-figs. 23-26 ; PI. 2, fig. 276 ; Map 1) 



Epicampoptera difficilis Hering, 1934 a : 4 OJ - 



Description. <$, $. There seems to be no significant external differences between difficilis 

 and andersoni (see Plate 2, fig. 276), although in both lectotype and paralectotype of difficilis the 

 postmedial fascia on the upper surface of both wings is very weakly marked. 



6* genitalia (Text-fig. 24-26) : each lobe of uncus with very short acuminate medial process ; 

 (valves not opened out in figure) ; shape of saccus not known ; basal half of aedeagus missing. 

 Eighth sternum with stout, acuminate, slightly asymmetric posterior arms ; medial part narrow, 

 slightly expanded at middle ; apodemes broken, but according to the figure given by Hering 

 (1934 a : 402) similar to those of andersoni though apparently not dilated apicad. (The slide 

 which formed the basis of Text-figs. 24-26 was prepared from a damaged dry preparation.) 



$ genitalia (Text-fig. 23) : both ostial and post-ostial segment strongly sclerotized ; ostium 

 shielded ventrally by two closely approximated processes ; signum irregularly shaped, with 

 transverse sulcus. (The genitalia from which the text-figure has been prepared was damaged 

 and distorted and has been drawn exactly as it appears on the slide. It is unlikely that the 

 female genitalia are normally asymmetric.) 



Measurements. A.P.R. : <$. 18. Wing : $. 21-0 mm. (1) 19-5 mm. (1). 



Discussion. Distinguished from ivoirensis, andersoni and tamsi, all of which 

 are closely related to difficilis, apparently only by the genitalia. 



It is remarkable that amongst the numerous specimens of Epicampoptera 

 examined from neighbouring regions of the mainland of Africa no specimens of this 

 species have been discovered, and it is possible that difficilis is replaced by ivoirensis 

 in the Ivory Coast, Ghana and Guinea, the two species forming a superspecies. 



Distribution (Map 1). Fernando Po. 



Material examined. LECTOTYPE. I have selected and labelled as lectotype 

 the male from the pair of syntypes in the Zoologisches Museum, Berlin. It bears 

 the following data : " Fernando Poo, Santa Isabel, S.ix.igib (G. Tessman) ; 

 Drepanidae genitalia slide No. 1240 ". 



Paralectotype. <j>, same collection data as type. 



