THYRIDIDAE OF AFRICA AND ITS ISLANDS 43 



Chrysotypus splendidus (Warren) 

 (PI. 4, figs 7, 8; PL 27, fig. 142; PI. 48, fig. 276) 



Proterozeuxis splendida Warren, 1899a : 7. 

 Proterozeuxis splendida Warren; Dalle Torre, 1914 : 38. 

 Proterozeuxis splendida Warren; Gaede, 1917 : 372. 

 Proterozeuxis splendida Warren; Gaede, 1929 : 497. 

 Chrysotypus splendida (Warren) Whalley, 1964a : 118. 



<J. Wing, 13-19 mm. Vertex brown irrorate with white. Frons light brown, clypeus 

 distinctly swollen. Antennae strongly bipectinate, with long narrow pectinations. Proboscis 

 small. Labial palps with third segment 1/3 length of second, upturned, reaching vertex. 

 Thorax brown, irrorate with white. Hind tibia with two pairs of spurs, outer spur of distal 

 pair slightly longer than inner one, proximal pair protruding well beyond scale cover of tibia. 

 Apices of spurs strongly sclerotized. Fore wing, pattern as in PI. 4, fig. 7, brown with dark 

 brown reticulations, fringe and costal margin brown. Veins i? 4 and J? 5 anastomosing. Hind 

 wing, pattern and colour as fore wing. Veins Sc-\-R 1 and Rs not joining. 



Genitalia £ (PI. 27, fig. 142). Median arm of juxta pointed with a few small hairs, lateral 

 arms strap-like and enlarged. 



$. Wing, 21-5-23 mm (PI. 4, fig. 8). Colour and pattern as male. Antennae minutely ciliate. 

 Labial palps with third segment 1/2 length of second. 



Genitalia $ (PI. 48, fig. 276). Neck of bursa covered with minute spines, number of spines 

 varying in different specimens. 



Discussion. There are two distinct series of this species. One has the fringes 

 brown, a few white scales on the wing and generally a yellowish brown ground colour, 

 the other has a white fringe to the wings, white costal margin to the fore wing and a 

 rather darker brown colouration. In the external morphology and the genitalia 

 there is no difference between these two series. The two series are constant in 

 colouration but the pattern within each series is variable. There is a high per- 

 centage of specimens with asymmetry in the pattern between left and right wings 

 in both series. Both series occur in the same localities and may be seasonal forms, 

 but the data at present available is inadequate to prove this. Some of the smaller 

 male specimens were collected in South Africa, these are darker in colour than the 

 dark-fringed series but still have the brown (not white) fringes. Strong sexual 

 dimorphism of antennae occurs in this species. Some of the Ugandan specimens 

 vary in the form of the reticulate pattern on the wings. 



Distribution. Map 5. Uganda; Mozambique; Rhodesia; Angola; Botswana; 

 South Africa. 



Material examined. 



Holotype $, South Africa: Natal (Spiller), BM slide no. 8299, in BMNH. 



Uganda: i <j>, near Mt Elgon; 2 <J, Murchison Falls, Paraa, iii-iv.1967 (Schaaf); 

 Mozambique: i <$, Chiluvo, 4.1V.1966 (Cookson); Rhodesia: 2 <$, Marandellas, 

 xii.1960, one S m NMR; 1 $, Umtali, 25.fi. 1943 (Carcasson), in NMK; 1 (J, Wankie, 

 ii.1925 (Tyler), in TMP; 1 <$, Umvuma, 18.1.1918 (Carnegie), in NMR; 1 <$, Umvuma, 

 xii.1918 (Carnegie), in NMR; 1 $, Shangani, xi.1919 (Chambers), in NMR; Angola: 

 1 <J, N'Dalla Tando, 1908 (Ansorge), 2700 ft; Botswana: i <$, 8 miles north of Maun, 

 8.11.1967, in NMR; 1 $, Makala-ma-Bedi, Botletle River, 6.11.1967, in NMR; 1 <$, 

 Thamalakani River, Maun, 7.11.1967, in NMR; South Africa: Natal (Leigh), 1900; 



