REVISION OF GENUS ZAMARADA 201 



Two male examples from S. Malawi, one from Zomba and one from Luchenya, have very 

 narrow, grey patterned terminal areas to the wings and in this respect are closely similar to 

 aclea and angustimargo in the bathyscaphes-group, but are distinguished by the absence of 

 striation and the presence of a minute discal spot in the hyaline area of each wing. 



£ genitalia (Text-figs 331, 332). Differs from closely similar cydippe in the form of the 

 right valve, in which the ventral margin is produced in angular form and extends beyond the 

 level of the rounded apex of the dorsal margin, and in the fulcrum, which is tipped with a 

 stout spine. The extent to which the ventral margin of the right valve is produced varies 

 and in many examples the valves are almost symmetrical. 



9 genitalia (PI. 71, figs 734, 737, 738). Distinguished from cydippe by the form of the 

 asymmetrical sterigma; the lamella antevaginalis is differently shaped and is situate at the 

 right side; its posterior margin is not bilobate. In some examples parallel, diagonal, 

 sclerotized ridges are developed at the left side (PI. 71, fig. 738). 



Measurements. Fore wing: <J 15-18 mm; $ 14-16 mm. Antennal pectinations: $ 15 X 

 $ 7 X diameter of shaft. 



Distribution. W. Africa, Guinea to Angola, Zaire, Uganda, Malawi. 



Holotype <?, Angola: Amboim District, Fazenda Congulu, 7-800 m, 7-1 i.iv. 1934 

 (Dr K. Jordan), Geometridae genitalia slide no. 7837, in BMNH. 



Paratypes. Guinea: Beyla (Dr Mir. Mrdzek), 6 o (MM, Brno); Macenta, 

 2000 ft, 2-21.V.1926 (C. L. Collenette), 3 $ (BMNH). Sierra Leone: (A. B. Frere), 

 I $; Freetown, 1898 (A. Mocquerys), 1 <$; ibidem, 8-19. xi. 1968 (D. F. Owen), 1 $ 

 (all BMNH). Ivory Coast: 2 $ (BMNH); Lamto, 36 km N.N.W. of Tiassale, 

 20-23.iv.1969 (C. Herbulot), 1 <$ (coll. Herbulot, Paris). Ghana: N. Territories, 

 Kete-Krachi [A. W. Cardinall), 1 <J (BMNH). Nigeria: 3 $ (UM, Oxford). 

 Cameroun: Bitje, Ja River, 2000 ft, iv-v. 1909, wet season (G. L. Bates), 1 $; 

 ibidem, dry season, vi-vii. 1909, 1 <$; ibidem, x, wet season, 1 $ (all BMNH). 

 Gabon: Franceville, 26.L1964 (P. Darge), 1 J; ibidem, 22.vii.1963, 1 $ (both coll. 

 Herbulot, Paris). Angola: holotype data, 7-22.iv.1934, 4 ^, 3 $. Zaire ('Belgian 

 Congo'): Sankaru, Katako-Kombe, 2.V.1952 (Dr M. Fontaine), 1 $ (MRAC, 

 Tervuren); Upper Uele District, Dungu, iv, 1 J (BMNH); Paulis, 25. vi. i960 

 (Dr M. Fontaine), 1 $ (MRAC, Tervuren). Central African Republic: Bimbo, 

 24.iv.1970 (C. Lemaire), 1 <$, 1 $ (coll. Herbulot, Paris). Uganda: Bwamba, 

 v. 1958 (R. H. Carcasson), 1 $ (BMNH); Toro, Kibale Forest, v. 1966 (R. H. 

 Carcasson), 1 $ (NMK, Nairobi); Masaka, Sango Bay, Katera, x. i960 (R. H. 

 Carcasson), 1 $ (BMNH), 1 $ (NMK, Nairobi); Entebbe, iii. 1961 (N. Mitton), 

 1 $ (BMNH); Entebbe, v. 1961 (T. H. E. Jackson), 1 $ (NMK, Nairobi); Entebbe, 

 v. 1961, 1 S (BMNH), 3 ^ (NMR, Bulawayo). 



Specimens associated with adumbrata, but excluded from the type-series: 

 Malawi: Mt Mlanje, 29.L1913 (S. A. Neave), 1 <$; S.W. of Lake Chilwa, 8L1914 

 (S. A. Neave), 1 $; Zomba, viii. 1925 (H. Barlow), 1 ^; Luchenza, Magunda Estate 

 (F.Nisbet), i(J (all BMNH). 



The ACROCHRA -Group 



Characterized in the male genitalia by the form of the valve; by the presence 

 of a short, longitudinal, medial ridge and by the strongly sclerotized, rounded, 



