REVISION OF GENUS ZAMARADA 77 



is unequally bifurcate, the dorsal margin being produced in digitate form, the extension 

 two-thirds as long as the uncus, the ventral extension being short. Distinguished further 

 by the more finely tapered, slightly spiral aedeagus and the longer fulcrum. 



9 genitalia (PL 23, figs 543, 544). Distinguished from flavicosta by the form of the finely 

 scobinate, asymmetrical, sclerotized plate which overlies the operculum. An anteriorly 

 inclined, hollow, talon-shaped process is situate at the right side, just posterior of operculum. 



Measurements. Fore wing: <§ 16-0-17 -5 mm; $ 15-17 mm. Antennal pectinations: 

 (J 17 X, $ 6 X diameter of shaft. 



Distribution (Map 2). Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana. 



Holotype <$, Ivory Coast: Bingerville, xi. 1913 {Gaston Melou), Geometridae 

 genitalia slide no. 6374, in BMNH. 



Paratypes. Guinea: Beyla (Dr Mir Mrdzek), 1 <$ (MM, Brno); Macenta, 2000 ft, 

 2-21.V.1926 (C. L. Collenette), 5 $ (BMNH). Sierra Leone: i $ (UM, Oxford); 

 Bambawo, 13.vi.1969, 1 <$; Bo, vi-vii. 1969, 1^,1$, all (R. Revell); Freetown, 

 x-xii. 1968 (D. F. Owen), 3 <$, 2 $ (all BMNH). Liberia: Simbek, 16. v. 1909 (A. 

 Pearse), 1 $ (BMNH); Marshall Terr., Harbel, 9-31.iii.1956 (R. M. Fox), 10 6", 

 14 $; ibidem, 4-11.iv.1956, 1 <$, 3 $; ibidem, 9.VL1956, 1 $ (all CM, Pittsburgh). 

 Ivory Coast: Bingerville, 20.v-11.vi.1915 (G. Melou), 1 <$, 13 <j>; ibidem, vii. 1915, 

 3 $; 16-18.viii.1915, 1 $; n-15.ix.1915, 1 $; xi. 1915, 5 <J, 17 $; 1913, 6 $; 1914, 

 10 $ (all BMNH); Yapo-Sud, 22 km S.S.E of Agboville, 12-18.iv.1969 (C. Herbulot), 

 5 $ (coll. Herbulot, Paris). Ghana: Ashanti, Goaso (G. N. Gibbs), 1 $; Kumasi 

 (Coomassie) (H. Whiteside), 2 <$, 4 $; Wassaw, 45 miles inland from Sekondi, 1 $; 

 Sekondi, 1 <$; A'Koon, 23.xii.1918 (Harrisson), 1 $ (all BMNH). 



Zamarada regularis sp. n. 



(Text-figs 103-105; PI. 24, figs 545-548; PI. 102, figs 909, 910; Map 2) 

 Zamarada flavicosta Warren ab. regularis Warren, 1909 : 115. 



(J $ (PI. 102, figs 909, 910). Colour and discal spotting of hyaline area and colours of non- 

 hyaline terminal area closely similar to those of flavicosta and indicata Cilia yellow, clear 

 and unmarked in discal area of each wing and at tornus of fore wing; chequered with grey 

 between vein-ends elsewhere. 



^ genitalia (Text-figs 103-105). Uncus long and slender, slightly dilate at mid-length. 

 Juxta digitate. Valves asymmetrical; dorsal process slightly dilate and densely setose in 

 basal third. Apical fourth of aedeagus narrowed and tapered. Apical three-eighths of fulcrum 

 coarsely scobinate, many spines twice as long as width of fulcrum. 



2 genitalia (PI. 24, figs 545-548). Sterigma asymmetrical, overlaid by a weaky sclerotized 

 transversely ribbed plate; lamella antevaginalis asymmetrically bifurcate and fused with 

 a more heavily sclerotized, crenulate plate at base; a weakly sclerotized, anteriorly inclined, 

 hollow, talon-shaped process at right side. 



Measurements. Fore wing: $ 14-16 mm; $ I 3'5 — 16-0 mm. Antennal pectinations: 

 O* 15 X , 9 5 X diameter of shaft. 



Distribution (Map 2). Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, 

 Nigeria. 



