REVISION OF GENUS ZAMARADA 97 



O* genitalia (Text-figs 143, 144). Valve truncate; dorsal margin narrowly sclerotized, 

 apical two-fifths produced towards uncus and scobinate along edge; dorsal process slightly 

 dilate and sparsely setose near base; hair-scales of coremata light buff. Aedeagus with 

 a short, thorn-like projection at two-thirds. Fulcrum asymmetrical with a short, digitate 

 projection midway along one side. Vesica with a small, thorn-like cornutus. 



§ unknown. 



Measurements. Fore wing: <$ 17 mm. Antennal pectinations: <$ 7-8 x diameter of 

 shaft. 



Distinguished in the male, together with laciniata and corymbophora, from 

 other species in the excavata-group by the presence of a pocket of deciduous 

 scales on the hind coxa. Very different in colour and wing pattern from laciniata; 

 distinguished from corymbophora by the dark brown rather than brownish orange, 

 non-hyaline terminal area of the upperside of the wings. In the genitalia the 

 distinctive form of the truncate valve is diagnostic. 



Distribution. Cameroun, Gabon, Zaire. 



Material examined. 



Zamarada thalia Oberthur, holotype J, Cameroun ('Kamerun'): Lolodorf, 

 1894-1895 (L. Conradt), Geometridae genitalia slide no. 6407, in BMNH. 



Cameroun: holotype data, 3 <$ (1 <$ Zamarada transvisaria Guenee sensu Oberthur; 

 all BMNH). Gabon: Belinga, Piste de Mwadi, 800 m, 20.iii.1963 (G. Bernardi), 

 2 <$ (MBG, Paris); Mouila, 25.ix-2cx.1964 (P. Darge), 5 $ (coll. Herbulot, Paris). 

 Zaire ('Belgian Congo'): Sankaru, Katako-Kombc, 6.iii.i962, 1 $; Lusambo, 

 8.ix.i950, 1 <J (both Dr Fontaine, in MRAC, Tervuren). 



Zamarada astales sp. n. 



(Text-figs 145, 146; PL 104, figs 931, 934) 



<J genitalia (Text-figs 145, 146). Valve truncate, apex of ventral margin sclerotized, 

 rounded and thinly ridged, hence apical area of valve scoop-like in form; dorsal margin excavate, 

 apex finely produced and scobinate on ventral surface; dorsal process slightly dilate near 

 base and sparsely setose; hair-scales of coremata light buff. Aedeagus with a small, bicuspid 

 projection at two-thirds. Fulcrum asymmetrical, dilate at one side, rounded at apex. 

 Vesica without cornutus. 



$ unknown. 



Measurements. Fore wing: g 15-17 mm. Antennal pectinations: <§ 9 x diameter of 

 shaft. 



Colour and pattern of upper and under surfaces of wings (PL 104, fig. 934) 

 closely similar to those of thalia. Distinguished by the less smoothly edged 

 excavation of the non-hyaline terminal area of each wing and in the male by the 

 absence of a pocket of specialized scales on the hind coxa; the hind tibia is dilate 

 with a dense tuft of scales enclosed in a longitudinal pocket. In the male genitalia 

 the form of the valve and the aedeagus is diagnostic. 



Distribution. Cameroun, Uganda. 



G 



