60 D. S. FLETCHER 



appreciably lesser degree on hind wing in most examples; discal spot on fore wing silvery grey 

 outlined with black, that on hind wing minute and black, when present. Basal area and 

 costa of fore wing and non-hyaline terminal area of each wing greyish orange (pi. 5, B4-B6) 

 varyingly irrorate with sepia to black, usually densely in apical half of hind wing, where it 

 forms a conspicuous dark clouding, and to a lesser extent in the discal and tornal areas of the 

 fore wing; slender sepia postmedial fascia, bordering the hyaline area distally, edged distally 

 with silvery grey; subterminal fascia silvery grey, the area between the two fasciae suffused 

 with orange-brown on the fore wing and on the posterior half of the hind wing. Underside 

 of non-hyaline terminal area greyish brown; in some examples the fore wing is brown in the 

 tornal area. 



^ genitalia (Text-figs 71, 72). Uncus stout and tapered. Ventral plate of gnathus dilate 

 and disc-like. Dorsal process of valve with spatulate, digitate projection. Aedeagus with 

 short, coarse spines at apex. Fulcrum three-eighths as long as aedeagus, simple and tapered to 

 a point. 



§ genitalia (PI. 16, figs 515, 516). Sterigma symmetrical; lamella postvaginalis bifurcate. 



Measurements. Fore wing: $ 8-10 mm; Cj 8*5— io*o mm. Antennal pectinations: $ 10 x , 

 $2'5 X diameter of shaft. 



Distinguished externally in most examples by the pronounced dark clouding of 

 the apical half of the distal third of the hind wing. Distinguished structurally from 

 the closely related ilma Prout by the form of the uncus, ventral plate of the gnathus 

 and the fulcrum and in the female genitalia by the form of the sterigma. 



Distribution. Ethiopia, Sudan, Kenya, Tanzania. 



Holotype $, Ethiopia ('Abyssinia'): Dire Daoua, iv. 1936 (H. Uhlenhuth), 

 Geometridae genitalia slide no. 1618, in BMNH. 



Paratypes. Ethiopia: Dire Daoua, i. 1935 (H. Uhlenhuth), 4 $; ibidem, ii. 1935, 

 1 S, 5 $; hi. 1935, 5 $; iv. 1935, 4 $, 10 ?; v. 1935, 2 <$, 15 $; vi. 1935, 1 <J, 14$; 

 xii. 1935, 2 $; Diredaua, N.W. of Harar, 1914 (G. Kristensen), 1 $ (all BMNH); 

 Awash (Aouash), 960 m, viii. 1957 (Fr. Schauffele), 2$ (SMN, Stuttgart). Kenya: 

 N. F. D., Mandera, Malka Murri, vi-vii. 1951 (J. G. Williams), 1 $; Mandera, x. 1951, 

 I 9; Marigat, 4000 ft, hi. 1950 (R. T. Evans), 1 $; ibidem, vii. 1950, 1 $; Marsabit, 

 ii. 1956 (/. G. Williams), 1 <$ (all NMK, Nairobi); Kajiado, Olorgasailie, iv. i960 

 (R. Carcasson), 1 $; Kibwezi, 23.xii.1918 (W. Feather), 1 $; ibidem, xii. 1921, 

 (Dummer), 2 $ (all BMNH); Voi, i. 1967 {R. Carcasson), 1 <£, 1 $ (NMK, Nairobi), 

 Pori, Landjoro, 900 m, hi. 1912 (Alluaud & Jeannel), 1 $ (BMNH). Tanzania: 

 Serengeti PI., Simiya R., 3500 ft, vii. 1952 (/. G. Williams), 1 $; Musoma, Banagi 

 Hill {Capt. M. S. Moore), 1 <J, 2 $ (aU BMNH); Shinyanga, Mwandui, ii. 1952 (Capl. 

 Croft), 1 $ (NMK, Nairobi); Olduvai Gorge, iii. i960 (/. Leaky), 1 $ (BMNH); 

 ibidem, xi. i960, 1 $ (BMNH), 1 $ (NMK, Nairobi); Kilimandjaro, Marangu, 1500 m, 

 30.x. 1958 (C. Lindemann), 1 $ (ZSBS, Munich); E. Usambara Mts, Amani, ii. 1953 

 (E. Pinhey), 1 $ (NMK, Nairobi). 



Zamarada ilma Prout 

 (Text-figs 73, 74; PL 17, figs 517, 518; PI. 99, figs 887, 888) 



Zamarada ilma Prout, 1922 : 179, pi. 1, fig. 6. Holotype $, Mozambique (TM, Pretoria) 

 [examined]. 



