134 D. S. FLETCHER 



Measurements. Fore wing: $ 13-0— 13-5 mm; $ 13-0-14-5 mm. Antennal pectinations: 

 (Jiox,?8 x diameter of shaft. 



Externally closely similar to iobathra Prout, with which it may occur in Kenya 

 but may usually be distinguished by the sharply defined subterminal fascia and 

 by the sharply marked, minute discal dots; in iobathra that on the fore wing is 

 diffusely marked and usually none is present on the hind wing. Structurally 

 the serrate apical third of the ventral margin of the valve in the male genitalia 

 and the asymmetrical sterigma in the female genitalia are diagnostic. 



Distribution (Map 3). Madagascar, Kenya Coast, Ethiopia. 



Material examined. 



Zamarada calypso Prout, lectotype <$ here designated, Madagascar: Diego 

 Suarez, 30.iv.1917 (G. Melon): 'Zamarada calypso Prout $ type' [in Prout's hand- 

 writing]: Geometridae genitalia slide no. 5982, in BMNH. 



Madagascar: Diego Suarez, I4.iii-2.v.i9i7 (G. Melon), 2 <$, 5 $; ibidem, 

 22.vi-25.viii.1917, 10 ^ 3 $ (all paralectotypes of Zamarada calypso Prout, in 

 BMNH); Nossi-Be, 150m, Foret de Lokobe, 3-9.xi.1958 (P. Viette), 1^,1$; 

 massif de Tsaratanana (versant Ouest), 1850 m, vallee de l'Andavaka, 11-13.X.1966 

 (P. Soga), 2 <$; Sakaraha, Zombitsy, n-12.iv.1956 (P. Griveaud), 1 <$ (all MNHN, 

 Paris); La Mandraka Forest, 70km E. of Tananarive, ix. 1962 (R. Vieu), 1 $ 

 (NMR, Bulawayo). Kenya: Nyali, xi-xii (D. G. Sevastopulo), 1^,1$; Kenya 

 Coast, Shimba Hills, xii. 1961 (R. Carcasson), 1 <$, 1 $ (all BMNH). Ethiopia: 

 Dire Daoua, iv-v. 1936 {H. Uhlenhnth), 2 $ (BMNH). 



Zamarada iobathra Prout 

 (Text-figs 226, 227; PI. 46, figs 633, 634; PL 108, fig. 973; Map 3) 

 Zamarada iobathra Prout, 1932 : 507. Holotype $, Kenya (MNHN) [examined]. 



<§ genitalia (Text-figs 226, 227). Uncus short, stout and tapered with two pairs of lateral 

 processes. Valve simple; dorsal margin sclerotized, apical third- serrate. Apical half of 

 aedeagus narrowed to thorn-like tip. Fulcrum weakly developed, not extending to apex of 

 aedeagus. Vesica with a short, scobinate cornutus. 



£ genitalia (PI. 46, figs 633, 634). Posterior margin of sterigma arcuate and minutely 

 serrate. Posterior third of corpus bursae sclerotized as illustrated; remainder membranous. 



Measurements. Fore wing: ^9 13-15 mm. Antennal pectinations: <$ 10 x,$6 X diameter 

 of shaft. 



Externally closely similar to calypso; most examples may be distinguished by 

 the less well defined, paler, brownish orange subterminal fascia and the more 

 diffuse discal spot on the fore wing (PI. 108, fig. 973); in most examples the discal 

 spot on the hind wing is absent. Externally similar also to bathyscaphes and to 

 adiposata in the bathyscaphes-group, but the distribution of iobathra is not known 

 to overlap that of either of the two other species. Structurally the form of the 

 valve and of the fulcrum and aedeagus in the male genitalia and the form of the 

 sterigma in the female genitalia are diagnostic for iobathra and for polyctemon, 



