REVISION OF GENUS ZAMARADA 257 



<§ genitalia (Text-figs 433, 434). Ventral plate of gnathus similar to that of tortura. Juxta 

 slender, apex excavate. Valves asymmetrical; truncate apical margin of each irregularly- 

 serrate; a short, scobinate projection extends from the apex of the ventral margin of the left 

 valve. 



$ genitalia (PI. 90, figs 818, 819). Asymmetrical lamella antevaginalis posteriorly rounded 

 at right side, obtusely angled at left side, the whole overlaid by and fused anteriorly with a 

 scobinate plate. Lamella postvaginalis produced medio-posteriorly and narrowly rounded. 



Measurements. Fore wing: $ 15-18 mm; $ 14-17 mm. Antennal pectinations: <§ 7 X , 

 9 2 X diameter of shaft. 



Similar in colour to latimargo; distinguished by the finer, grey suffusion rather 

 than coarse striation of the hyaline area of the wings and by the much shallower 

 and lunulate excavation of the non-hyaline terminal area of each wing between 

 veins M 3 and Cu lb . In the male genitalia the form of the asymmetrical valves 

 and in the female genitalia the form of the sterigma are diagnostic. 



Distribution. Cameroun, Gabon, Zaire, Uganda. 



Holotype J, Cameroun: Efulen, 7.VL1923 (H. L. Weber), in CM, Pittsburgh. 



Paratypes. Cameroun: Efulen, 18.ii.1922 (H. L. Weber), 1 <J; ibidem, 

 10-15.iii.i923, 2 <J, 4 $; 4-19.iv.1923, 6 <J, 1 $; 31.V.1922, 2 (J, 1 $; 6-2i.vi, 6 <J, 

 4 9; 13 vii.1922, 1 <J; 6-30.1X, 1 (J, 1 ?; 7-28.X, 1 $, 6 $; i-2i.xi, 3 <J, 2 $; 8-27.XU, 

 4 ^, 3 $ (all CM, Pittsburgh); Epulan, 17.iv.1926 (G. Schwab), 1 J; Johann-Albrechts 

 Hohe, 9.iii.i896 (L. Conradt), 1 $ (both BMNH). Gabon: Monte de Cristal, 

 Abanga, 24.xi.1968 (P. Darge), I $; Mouila, 5.L1965 (P. Darge), 1 <£ (both in coll. 

 Herbulot, Paris). Zaire ('Belgian Congo'): Lusambo, 14. ix. 1950, 1 <^; Sankuru, 

 Katako-Kombe, 23.vi.1952, 1 <$; ibidem, 19.viii.1952, 1 <$; Uele, Paulis, 15.iv.1956, 

 I $; ibidem, 12.vi.1958, 1 ^ (all Dr M. Fontaine); Kilo, 1939, 1 $; Kibali-Ituri, 

 Nioka, 23.iii.1952 (/. Hecq), 1 $ (all MRAC, Tervuren); E. Ituri Valley, 30 miles S. 

 of Irumu, 3000 ft, vii. 1924 (7\ A. Barns), 2 <$, 1 $; Mt Hoyo, 31.X.1956 (C. Seydel), 

 1 $ (all BMNH). Uganda: Bwamba, v-vi, ix (#. Carcasson), 4 (J, 2 $ (BMNH), 

 4 cJ, 2 $ (NMK, Nairobi); Toro, Kibale Forest, v. 1966 (R. Carcasson), 2 <£ (NMK, 

 Nairobi) . 



The CA TORI-Grovp 



Externally similar in size and colour to sagitta in the tullia-group. 



Characterized in the male genitalia by the form of the uncus, the apical half 

 of which is short, slender and tapered, the basal half with lateral, shoulder-like 

 projections. Ventral plate of gnathus strongly developed; valves symmetrical; 

 aedeagus finely tapered; fulcrum with a dilate, scobinate apex. 



In the female genitalia the sterigma is asymmetrical with the operculum at 

 the right side. The lamella antevaginalis is overlaid by and fused anteriorly with 

 a sclerotized plate. The lamella postvaginalis is produced posteriorly. 



Both the form of the aedeagus in the male genitalia and that of the sterigma 

 in the female genitalia shew an affinity with tortura and pelobasis and the sole 

 species in the group, catori Bethune-Baker is accordingly placed next to them. 



R 



