150 P. E. S. WHALLEY 



second, upturned, not reaching vertex. Thorax, patagia, light brown, darker brown across 

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

 spur. Fore wing, pattern as in PL 18, fig. 91, yellow-brown with darker brown reticulations. 

 Veins lA and iA join near base, iA very reduced, not reaching wing margin. Hind wing, 

 colour as fore wing. Sc-\-R x and Rs free. 



Genitalia £ (PL 42, figs 236-238). Uncus simple. Gnathus present, covered with minute 

 spines on median projection. Valve simple, basal process a narrow elongate strip. Juxta 

 with lateral arms slightly incurved at apex. Aedeagus with spiny vesica. 



$. Wing, 14—25 mm. Colour and pattern as in male. Labial palps with third segment 

 nearly equal in length to second segment, upturned, reaching vertex. 



Genitalia $ (PL 64, figs 401, 402). Anal papillae short. Ostium simple. First part of 

 duct lightly sclerotized with minute spines. Bursa partly covered with minute spines. 



Discussion. Variation in the colour occurs, with some specimens being darker 

 than others. There is also some variation in the intensity of the reticulate pattern 

 which is more extensive and darker in the specimens with a darker ground colour. 

 Specimens from Gabon are much smaller than the others and may represent a 

 subspecies but there is some overlap in size. Externally this species is similar to 

 N. nivosa but it can be separated from this species by the yellow-brown (not white) 

 colour of the wings. The shape of the juxta of the male is similar to species of 

 Opula but eugrapha lacks the signum in the female which is characteristic of species of 

 Opula. 



Distribution. Map 69. Sierra Leone; Liberia; Ghana; Nigeria; Cameroon; 

 Rio Muni; Gabon, Republic of the Congo; Democratic Republic of the Congo. 



Material examined. 



LECTOTYPE $ (eugrapha), here designated, Ghana: Coomassie [Kumasi] 

 (Whiteside), Rhodoneura eugrapha Hampson, BM slide no. 9046, in BMNH. 

 Holotype <$ (alenica), Rio Muni: Alen, Benitogebiet, in ZMB. Holotype $ 

 (thermography), Nigeria: Ilesha (Humfrey), BM slide no. 9615, in BMNH. 



Sierra Leone: i $, 1898; Liberia: 2 $, Nimba, Grassfield, vii-ix.1967 (Forbes- 

 Watson); Ghana: i <$, Wassaw Distr., 45 ml inland from Sekondi; 1 <$, Coomassie 

 (Whiteside), (paralectotype) ; 1^,1$, Takwa (James); 1 <$, Bibianaha, x.1911 

 (Spurrell); Cameroon: i $, Bitje, dry season, 1913; 1 $, Bitje, Ja River, x, wet 

 season (Bates); 6 $, Efulen, 1922-25 (Weber), five $ in CMP; Gabon: i $, Sevene de 

 Mwadhi, iii.1963 (Bernardi) ; 3$, Makokou, 500 m, Miss. Biologique, iii.1962 (Bernardi), 

 inMNHN^^, 1 $, Belinga, 600 m, Camp Centrale, iii.1962, twocJ, one^inMNHN; 

 Republic of the Congo: i $, Ftoumbi, Moyen Congo, ii.1962 (Jackson), in NMK; 

 Democratic Republic of the Congo: 2 <$, Loile River, Ikela, Equateur, iv.1959 

 (Carcasson) 1 $ in NMK ; 1 <$, Kilo, ix.1936 (Thalmau), in MRAC ; 1 ?, Sankuru, Djeke, 

 xi.1952 (Fontaine), in MRAC; 1 $, Bena Dibele, Sankuru, Kasai, iv.1959 (Carcasson), 

 in NMK; 1 $, Elisabeth ville, v.1931 (de Loose), in MRAC; 2 <$, Opala, Lomami R., 

 Prov. Orientale, iii.1959 (Carcasson), one £ in NMK. 



Nemea tamsi sp. n. 



(PI. 18, fig. 92; PI. 42, fig. 235) 



o*. Wing, I4*5-I7 mm. Vertex reddish brown. Labial palps with third segment 1/3 

 length of second, upturned, just reaching vertex. Frons reddish brown, not projecting between 



