REVISION OF GENUS ZAMARADA 143 



Distribution. Zambia. 



Holotype <$, Zambia ('N. Rhodesia'): Upp. Luangwa, Luwumbu Valley, 

 2500-3500 ft, 21.vii.1910 (S. A. Neave), Geometridae genitalia slide no. 5936, 

 in BMNH. 



Paratypes. Zambia ('N. Rhodesia'): Abercorn, iv. 1964 {D. Vesey- Fitzgerald), 

 1 <J (BMNH); Lower Chumbezi Valle}', Mpika distr., 17. v. 1908 (5. A. Neave), 

 Zamarada pyrocincta Hampson, paratype $ [misidentification] (UM, Oxford); 

 Bwana Mkubwa, ix. 1929 (Bell-M arley) , 1 <$ (BMNH). 



The PURIMA RGO-Grovp 



Related to, but distinguished from the balhyscaphes-group by the male genitalia, 

 which are characterised by the short, almost straight dorsal process of the valve, 

 the process being densely and finely spined in its apical half; by the truncate, 

 asymmetrical valves and by the form of the fulcrum, which is dilate and spiral 

 apicad with one surface densely coarsely scobinate. The male hind tibia is simple. 



In the female genitalia the sterigma is asymmetrical with finely tapered, sometimes 

 serrate-edged projections extending posteriorly from the lamella antevaginalis. 



Zamarada purimargo Prout 

 (Text-figs 242, 243; PL 50, figs 652, 653; PI. 109, figs 980, 982) 



Zamarada purimargo Prout, 1912 : 197. Holotype 9. Rhodesia (BMNH) [examined]. 

 Zamarada purimargo Prout; Janse, 1932 : 143. 



Zamarada viridiceps Prout, 1034a : 95. Holotype $, Zaire (MUM IVivuren) [examined]. 

 Syn. n. 



(J $ (PI. 109, figs 980, 982). Hyaline area of wings greenish white; discal spots minute or 

 absent. Basal area of fore wing greyish orange to light brown. Non-hyaline terminal 

 area of each wing greyish orange (pi. 6, B3) to light brown (pi. 6, D8), uniformly coloured in 

 the female, varyingly suffused with greyish brown (pi. 6, F3, negro) in the male, the suffusion 

 often irregularly concentrated immediately distad of the hyaline area; subterminal fascia 

 not marked. Underside of non-hyaline terminal area similar to upperside. 



£ genitalia (Text-figs 242, 243). Apical half of uncus slender and tapered; basal half 

 triangular. Arms of gnathus weakly sclerotized and tapered; ventral plate not developed. 

 Valves asymmetrical, as illustrated; dorsal process almost straight, apical half densely and 

 finely spined to rounded apex. Aedeagus tapered apicad, scobinate on dorsal surface at 

 three-fourths. Fulcrum longer than aedeagus, dilate and spiral in apical half, apical surface 

 coarsely and densely spined. Vesica without cornutus. 



$ genitalia (PI. 50, figs 652, 653). Sterigma asymmetrical with finely tapered projections, 

 sometimes serrate-edged, extending posteriorly from lamella antevaginalis. 



Measurements. Fore wing: ^$ 13-15 mm. Antennal pectinations; $ 8 x,$2 X diameter 

 of shaft. 



A species readily distinguishable by colour and pattern. In the male genitalia 

 the form of the valve, with the straight, finely spined dorsal process, and in the 

 female genitalia the form of the lamella antevaginalis are diagonostic. 



