154 A. WATSON 



4-14. xii. 1949 (Real). British Museum (Natural History). Cameroun : 1 <$, Bitje, 

 Ja River, 2,000 ft., x-xi.1912. Congo : 1 <$, Yakusu (Smith). Central African 

 Republic : 2$, 2 % Boukoko M'baiki, 6,10. xii. 1949, 6,10. xii. 1959 (Real). Coryndon 

 Museum, Nairobi. Congo : 1 $, Orientale, Opala, Lomami River, iii.1959 

 (Carcasson). Museum d'Histoire naturelle, Geneva. Congo : 2 $, Mt. Katanga, 

 Panda, 26,28.^.1930 (Romieux). 



Other material. Two females from Efulen and Lolodorf (Cameroun), in the 

 Carnegie Museum, Pittsburgh, probably also represent this subspecies. 



Callidrepana serena nigeriensis ssp. n. 



(Text-figs. 247, 248 ; PI. 16, 337 ; Map 7) 



Diagnosis. <J. The small posterior emargination of the eighth abdominal sternum and the 

 weakly tapered aedeagus separate this from the nominate subspecies. The two subspecies are 

 apparently not distinguishable externally. 



$. Not known. 



Measurements. Wing : q*. 11-5, 110-12-0 mm. (4). 



Distribution. Known with certainty only from Nigeria. There are female 

 specimens from Sierra Leone in the British Museum (Natural History) which will 

 probably prove to belong to this subspecies when male material becomes available 

 for comparison. 



Material examined. Type. Holotype <$, Nigeria, Port Harcourt, 16.1.1955 

 (MacNulty) ; Drepanidae genitalia slide No. 1232 ; in the British Museum (Natural 

 History). 



Paratypes. British Museum (Natural History). Nigeria : 2 <$, Port Harcourt, 

 16, 30.L1955 (MacNulty) ; 1 g, Ogruga. 



Callidrepana macnultyi sp. n. 



(Text-figs. 249-252 ; PL 16, figs. 334, 335 ; Map 7) 



Description. 6*. Outer surface of palp very dark brown. Front of head brown, paler 

 towards labrum, vertex paler brown, highly lustrous. Upper surface of basal segments of 

 antennal shaft brown, remainder very pale brown. 



Dorsal surface of thorax brownish white, palest anteriorly ; ventral surface as for colour of 

 anterior margin of dorsal surface. Front surface of whole of fore leg brown ; remaining legs and 

 inner surface of fore leg brownish white. Outer margin of fore wing slightly convex (holotype) or 

 straight, costa strongly arcuate at base ; posterior half of outer margin of hind wing usually 

 slightly convex (including holotype) (Plate 16, fig. 334). Venation of fore wing as for serena, 

 except in holotype which has no areole and only four radial veins at the wing margin due to 

 complete anastomosis of R 2 and R 3 or the loss of the distal part of R 3 ; Sc + R 1 in the hind wing 

 anastomoses with Rs for short distance distal to end of cell. Ground-colour of upper surface of 

 both wings pale greyish buff ; but in one Nigerian specimen this is replaced by very dark brown 

 near anal margin of fore wing and in posterior half of hind wing between distal line of antemedial 

 fascia and proximal line of postmedial fascia. Fore wing markings brown. Proximal line of 

 antemedial fascia, distal line of postmedial fascia, brown streak extending towards apex from 

 cell, and brown apical patch all highly lustrous ; line of highly lustrous scales concolorous with 

 ground-colour below whole of costa and in cell from base to cell-spots ; cell-spots non-lustrous ; 

 fringe dark brown at apex, remainder pale brown. Colour of hind wing markings as for fore wing; 



