REVISION OF GENUS Z AM AHA DA 43 



apex tapered to rounded tip, surface minutely scobinate. Dorsal process of valve with tri- 

 angular projection at one-half, anterior margin serrate; a short, setose, digitate process at base 

 of serrate edge. Fulcrum extending beyond aedeagus, tip broadened and densely spined. 

 Aedeagus with a scobinate ridge at one side in apical third. Thorn-like cornutus on vesica 

 subequal in length to width of aedeagus. 

 9 unknown. 



Measurements. Fore wing: iO'5-i2-o mm. Antennal pectinations : n X diameter of shaft. 



Distinguished externally from closely related species in the pulverosa-gvoup by 

 the pale yellow colour of the wing with the strongly contrasting black subterminal 

 markings and structurally by the form of the projection on the dorsal process of 

 the valve, which bears an additional short, setose process at the base of its serrate 

 edge. 



Distribution. Uganda, Nigeria. 



Material examined. 



Zamarada chrysothyra Hampson, holotype <$, Uganda: S. E. Ruwenzori [Mokia], 

 3500 ft, 28. vi. 1906 (Hon. G. Legge & A. F. R. Wollaslon), Geometridae genitalia 

 slide no. 1666, in BMNH. 



Uganda: Ankole, Kayonza, v. 1958 (/. R. F. Mills), 1 <J; Bwamba, v. 1958 

 (R. Carcasson), 1 <$ (both NMK, Nairobi); Masaka, Buddu, Lwengo, 4200ft, 

 24.V.1935 (H. B. Johnston), 1 $ (ARS, Kawanda). Nigeria: north, Zungeru, 

 26.iv.19n (Scott Macfie), 1 <J (BMNH). 



Zamarada secutaria (Guenee) 

 (PL 9, figs 487, 488; PL 97, fig. 863) 



Stegania secutaria Guenee, 1857a : 45. Holotype 9, Ethiopia (MNHN, Paris) [examined]. 



9 (PI. 97, fig. 863). Hyaline area of wings irrorate with greyish yellow; medial fascia on fore 

 wing greyish yellow (pi. 4, B5, golden wheat) passing through discal spot, which is grey outlined 

 with dark brown; discal spot on hind wing minute, dark brown. Non-hyaline terminal area 

 of each wing light yellow (pi. 4, A4) irrorate proximally, especially in discal area of fore wing, 

 with greyish yellow. Underside of non-hyaline terminal area similar to upperside. 



9 genitalia (PL 9, figs 487, 488). Sterigma asymmetrical, operculum at right side; lamella 

 antevaginalis extending further posteriorly on right side than on left, posterior margin dentate 

 at right side and just to left of centre. Ductus bursae sclerotized, more extensively at right 

 side. 



<$ unknown. 



Measurements. Fore wing: 16-17 mm. Antennal pectinations: 3 X diameter of shaft. 



Closely similar in colour and pattern to some examples of ordinaria, but having 

 an outlined discal spot on the fore wing instead of a small, solid dot. Structurally 

 distinct in the form of the sterigma, but closely akin both to ordinaria and to amicta. 



Distribution. Ethiopia. 



Material examined. 



Stegania secutaria Guenee, holotype 9, Ethiopia, in MNHN, Paris. 



