REVISION OF GENUS ZAMARADA 261 



$ genitalia (PI. 91, rigs 822, 823). Ductus bursae enclosed in a strongly sclerotized cone-like 

 sterigma, the ventral surface of which is densely scobinate and bears two semi-circular folds 

 anteriorly; a short, thorn-like projection from posterior margin of sterigma. 



Measurements. Fore wing: g 17-0-18-5 mm; $ 17-0-17-5 mm. Antennal pectinations: 

 <J 8 X, $ 3 X diameter of shaft. 



Closely similar in colour and wing-pattern to emaciata; series of the two species 

 shew that in eucharis the hyaline area is greener-tinged, less striate and the discal 

 spots smaller. Single specimens are best determined by the genitalia, which in 

 both sexes are diagnostic. 



Drury's original description of eucharis records the type locality as Brasil and 

 the wing-span as 'more than one inch and a half; the measurement of the type 

 would probably have been only fractionally greater, for Drury recorded wing 

 measurements to the nearest eighth of an inch, sometimes 'almost an eighth'. 

 The figure, measuring one and three-quarter inches, probably represents an 

 enlargement. 



Wing-span, colour and pattern of Drury's figure of eucharis accord closely with 

 several species of Zamarada occurring in Sierra Leone, whence Drury received 

 the majority of the African insects described and figured in volume 3 of his Exotic 

 Insects; no species resembling eucharis is known from the Antilles or from 

 S. America. 



According to Horn & Kahle (1935 : 62), the Lepidoptera types from the Drury 

 collection passed to the BMNH from the Milne collection; no specimen of Zamarada 

 has been found in the BMNH that could have come from the Drury collection. 

 In order to stabilize the name in a group of several similarly patterned species, 

 each according well with Drury's figure of eucharis, a neotype has been designated. 



Distribution. W. Africa, Guinea to Nigeria. 



Material examined. 



Zamarada eucharis Drury, neotype J, Sierra Leone: Bo, 10. i. 1958 (R. Taylor), 

 Geometridae genitalia slide no. 7830, in BMNH. 



Guinea: Massadou, near Macenta, 1600 ft, 13-17. v. 1926, 1 <$; Macenta, 2000 ft, 

 v. 1926, 1 J, 1 $ (all C. L. Collenette). Sierra Leone: Freetown, x-xi. 1968 (D. F. 

 Owen), 1 $; Moyamba (D. Cator), 1 <$; Bo, io.i.1958 (R. Taylor), 1 <$; Bambawo, 

 13.vi.1969 (R. J. Revell), 1 ^ (all BMNH). Liberia: Nimba, Grassfield, vi-vii. 1967 

 (A Forbes-Watson), 1 <$ (NMK, Nairobi); Marshall Territory, Harbel, 19.ix.1955 

 (R. M. Fox), 1 ^ (CM, Pittsburgh). Ivory Coast: Bingerville, 15-23. v. 1915 

 (G. Melon), 1 <?; ibidem, 1-3.vii.1915, 1 $ (both BMNH); Bingerville, i.xii.1961 

 (/. Decelle), 1 $ (MRAC, Tervuren); Lamto, 36 km N.N.W. of Tiassale, 

 20-23.iv.1969, 2 <J; Yapo-Sud, 22 km S.S.E. of Agboville, 12-18.iv.1969, 2 $ (all 

 C. Herbulot, in coll. Herbulot, Paris); Gopoupleu pres Danane, 8J.1959 

 (R. Condamin & R. Roy), 1 £ (IFAN, Dakar). Ghana: i <J; Wassaw, 45 miles 

 inland from Sekondi, 1 <$. Nigeria: (/. Boorman), 3 <J; Ilesha (L. E. H. Humfrey), 

 1 6*, 1 $; Ikom, 24.fi. 1930 (E. F. G. Haig), 1 $. 



