THYRIDIDAE OF AFRICA AND ITS ISLANDS 165 



Rhodoneura impletalis (Walker); Gaede, 1929 : 492. 

 Rhodoneura micragraphalis Hampson; Gaede, 1929 : 492. 

 Opula impletalis Walker; Whalley, 1964a : 123. 

 Opula impletalis Walker; Whalley, 1967 : 39. 



o*. Wing, 13-16 mm. Vertex brown with white scales in centre produced into tuft between 

 antennae. Frons brown, not swollen. Antennae minutely ciliate. Labial palps with third 

 segment 1/3 length of second, upturned, reaching vertex. Thorax brown, irrorate with white. 

 Hind tibia with outer spur of distal pair 1/2 length of inner spur, almost as long as 1st segment 

 of hind tarsi. Fore wing, pattern as in PI. 21, fig. 109, brown with grey-brown markings. 

 Underside of wing paler than upperside. Hind wing, colour and pattern as fore wing. Vein 

 Sc+Ri and Rs free. 



Genitalia £ (PI. 45, fig. 253). Gnathus lightly sclerotized. Valves narrowing near apex. 

 Last segment of abdomen with concave posterior margin. Aedeagus with spiny manica. 



$. Wing, 18-20-5 mm. Colour and pattern as male. Third segment of labial palp 1/2 

 length of second. 



Genitalia ? (PI. 66, figs 422, 423). Neck of bursa lightly sclerotized behind ostium. Signum 

 variably spined, generally transverse, with some differences in size in different specimens. 



Discussion. The genitalia of the male and female of this species are very similar 

 to 0. spilotata Warren but the pattern of the two species is quite distinct. From 

 0. perigrapha, which this species also resembles externally, 0. impletalis can be 

 separated by its larger size and heavier pattern. In the genitalia in the male, 

 perigrapha has a broad gnathus while impletalis has a narrow one. In the female the 

 very elongate signum of perigrapha easily separates this from impletalis. 



Distribution. Map 61 . Sierra Leone ; Ivory Coast ; Ghana ; Nigeria ; Cameroon ; 

 Democratic Republic of the Congo. 



Material examined. 



Holotype £ [impletalis), Democratic Republic of the Congo: 85.75, in BMNH 

 (the specimen lacks an abdomen) . LECTOT YPE $ [micragraphalis) , here designated, 

 Sierra Leone: 97.38, Rhodoneura micragraphalis Hampson, type <$, BM slide no. 

 8517, in BMNH. 



Sierra Leone: i $ [Distant); Ivory Coast: i <J, Asorokrou, 18-20.ii.1903 

 [P ember ton); 3 $, Bingerville, iii.1915 [Melon); Ghana: i <$, Coomassie [Kumasi] 

 [Whiteside); Nigeria: i $, Ibadan, viii-ix.1955 [Alexander); Cameroon: i <$ (no 

 other data) ; 1 $, no locality data, in CMP. 



Opula perigrapha (Hampson) comb. n. 

 (PI. 21, fig. no; PI. 45, fig. 254; PL 66, figs 424-426) 



Rhodoneura perigrapha Hampson, 1914 : 114. 

 Rhodoneura perigrapha Hampson; Gaede, 191 7 : 365. 

 Banisia spilotata ab. complicata Warren, 1898b : 222, syn. n. 



<J. Wing, 10-5-12 mm. Vertex pale yellow-brown, lighter in centre, produced in tuft 

 between antennae. Frons brown, not swollen. Antennae minutely ciliate. Labial palps 

 with third segment 1/3 length of second, upturned, not reaching vertex. Thorax pale yellow- 

 brown. Hind tibia with outer spur of distal pair slightly more than 1/2 length of inner spur. 

 Inner spur 2/3 length of 1st hind tarsi. Fore wing, pattern as in PI. 21, fig. no, pale grey-brown, 

 reticulated with darker brown and with darker transverse fascia. Underside paler. Hind wing, 

 pattern and colour as fore wing. Sc+R x and Rs free. 



