160 D. S. FLETCHER 



smoothly sclerotized, scoop-like in shape. Valve slender and bifurcate, relative length of 

 arms varying geographically; dorsal process with setose, digitate projection from near base, 

 setae extending to or beyond apex of valve. Aedeagus tapered, apex simple or hook-like. 

 $ genitalia (PI. 56, figs 676, 677). Lamella postvaginalis produced posteriorly and narrowly 

 rounded; posterior margin of lamella antevaginalis shallowly bilobate. Ductus bursae 

 sclerotized and minutely scobinate in posterior half. 



Measurements. Fore wing: <$ n-5-i3-omm; $ ii-5-i4-omm. Antennal pectinations: 

 ^ 10 X , $ 3 X diameter of shaft. 



Three subspecies are recognized, two distinguished by colour and wing pattern, 

 each with similar genitalia, and a third is distinguished by the form of the valves 

 and aedeagus in the male genitalia. 



Distribution (Map 4). Ivory Coast, Ghana, Cameroun, W. Uganda, Zaire, 

 Tanzania, Mozambique, Malawi, Zambia, Rhodesia, Angola. 



Zamarada ignicosta ignicosta Prout 

 (Text-figs 269, 270; PL in, fig. 998; Map 4) 

 Zamarada ignicosta Prout, 1912 : 198. Holotype (J, Rhodesia (BMNH) [examined]. 



^ $ (PI. in, fig. 998). Collar light yellow. Frons, head and basal half of dorsal surface 

 of antenna reddish orange (pi. 7, B8) to brownish orange (pi. 7, C8, copper). Hyaline area 

 of wings weakly tinged with green and striate with grey. Costa of fore wing light yellow 

 irrorate with reddish orange. Non-hyaline terminal area of wings reddish grey (pi. 12, C2), 

 sometimes irrorate with reddish orange, and slenderly edged both proximally and distally 

 with reddish orange; dentate subterminal fascia light yellow edged proximally with reddish 

 orange, except between veins f? 4 and R 5 on fore wing, where it is edged with black. Underside 

 of non-hyaline terminal area of wings greyish orange. 



$ genitalia (Text-figs 269, 270). Ventral arm of bifurcate valve longer than dorsal. Apex 

 of aedeagus tapered and straight. 



Measurements. Fore wing: g 12-13 mm; $ 14 mm. 



Distribution (Map 4). S.W. Zambia and N.W. Rhodesia, below 500 ft. 



Material examined. 



Zamarada ignicosta Prout, holotype <J, Rhodesia: Victoria Falls, 26.V.1911, 

 Geometridae genitalia slide no. 5934, in BMNH. 



Rhodesia: Half-way Wankie- Victoria Falls, vii. 1929 (G. van Son), 1 $ (BMNH). 

 Zambia: Livingstone, 25-28.V.1954 (A. J. T. Janse), 1 <J, 2 $ (TM, Pretoria), 1 £ 

 (BMNH). 



Zamarada ignicosta pyrilampes Prout 

 (PL in, figs 999, 1000; Map 4) 



Zamarada ignicosta pyrilampes Prout, 1915 : 345. LECTOTYPE <J, Angola (BMNH), here 



designated [examined]. 

 Zamarada hemimeres Prout, 1915 : 342. Holotype $, Malawi (BMNH) [examined]. Syn. n. 

 Zamarada pyrocincta Hampson ab. 1, Hampson, 1910 : 470. 

 Zamarada pyrocincta Hampson ab. pyrocinctoides Strand, 1917 : 10. LECTOTYPE $, 



Zaire (BMNH), here designated [examined]. Syn. n. 



