92 P. E. S. WHALLEY 



pattern of abacha is distinctive and does not closely resemble any other species. Its 

 relationship with the other species may be clearer when the female is known. 



Distribution. Map 45. South West Africa; Botswana. 



Material examined. 



Holotype J, South West Africa: Abachaus [160 ml N. of Windhoek] i.1947 

 (Hobohm), BM slide no. 10592, in TMP. 



Paratypes. South West Africa: 2 $, Abachaus i.i945, in TMP; 3 <$, Abachaus, 

 xii.1945 (Hobohm), 2 <$, in TMP; 1 $, Abachaus, i.1950 (Hobohm); 1 <$, Tsumeb, 

 xii.1919 (Tucker), in TMP. 



Material not included in type-series. Botswana: i <$, Makala-ma-Bedi, Botletle 

 River, 6. 11. 1967 (Pinhey), in NMR. 



Rhodoneura (Rhodoneura) roseola sp. n. 



(PI. 1, C; PL 34, fig. 184; PL 56, figs 330, 331) 



cJ. Wing, 9-10-5 mm. Vertex brown. Antennae moderately ciliate. Labial palps with 

 third segment less than 1/2 length of second, upturned, not reaching vertex. Thorax brown. 

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

 wing, pattern as in PI. 1, C, olive-brown with strong pinkish red suffusion, especially in the 

 terminal area. Terminal area with brown fascia, thin white sinuous line subterminally. 

 Underside more marked with brown transverse lines. Venation variable, some specimens with 

 i? 4 and R b stalked, some with R 3 and i? 4 stalked other specimens with all radials from cell. 

 Hind wing, colour as fore wing, broad median fascia, pinkish red edged on either side with 

 brown, fringe brown, terminal margin pinkish red. Sc+R t and Rs free. 



Genitalia <J (PI. 34, fig. 184). Uncus simple. Gnathus present. Valve simple, basal 

 process a small plate, upturned near base of valve. Juxta with two slightly elongate lateral 

 lobes with spiny apices. Aedeagus with spiny manica. 



$. Wing, 9 - 5-iO'5 mm. Colour and pattern as in male. Labial palps similar to male. 



Genitalia $ (PI. 56, figs 330, 331). Anal papillae short. Small sclerotized part near ostium. 

 Duct covered with minute spines. Bursa spinose with signum a sclerotized plate with inward 

 pointing, toothed, process, usually with three small teeth. 



Discussion. Externally this species is similar to R. disjuncta Gaede. It can be 

 distinguished from this species by the wing pattern and in the male genitalia by the 

 longer median process to the gnathus and longer lateral arms to the juxta than 

 disjuncta. In the females the presence of the signum separates roseola from disjuncta. 

 The females are generally larger than the males but the range of sizes overlaps. The 

 presence of the signum in the bursa of the female separates this species from all the 

 others in the subgenus and this presence of the signum would suggest that it should 

 be placed in the other subgenus, Isothauma, if this character alone is considered. 

 However, roseola is so similar in other features to disjuncta that I am retaining it in 

 the same subgenus. Very little variation in pattern of roseola was found but the 

 origin of the radial veins differs in different specimens, this variation also occurs in 

 specimens of disjuncta. 



Distribution. Map 48. Tanzania; Mozambique; Malawi; Zambia; Rhodesia; 

 South Africa. 



