42 D. S. FLETCHER 



9 (8) Dorsal process of eacli valve cygnate, smooth-edged on ventral surface and 



with serrate-edged projections on dorsal surface; processes asymmetrical . io 



- Dorsal process of valve cygnate with serrate or scobinate-edged projection on 



dorsal surface; processes symmetrical . . . . . . . n 



io (9) Dorsal surface of left-hand process serrate from one-third to two-thirds and 

 angled at one-half (Text-fig. 59). Distribution: northern subtropics 



torrida (p. 53) 



- Dorsal surface of left-hand process serrate and usually shallowly excavate be- 



tween one-third and two-thirds (Text-fig. 61). Distribution: South West 

 Africa .......... tosta (p. 54) 



1 1 (9) Projection from dorsal process of valve in form of equilateral triangle based on 



process, anterior margin serrate . . . . . . . .12 



- Projection from dorsal process of valve not so formed . . . . 13 



12 (11) Posterior margin of triangular projection smooth and straight; anterior margin 



serrate with a slender, setose, digitate process situate at its base (Text- 

 fig. 41) . . . . . . . chrysothyra (p. 42) 



- Posterior margin of triangular projection smooth and shallowly concave; 



serrate anterior margin without process at base (Text-fig. 43) amicta (p. 44) 



13 (11) Dorsal process of valve weakly cygnate, little more than sinuous; serrate-edged 



projection slender and digitate (Text-figs 53, 55-58). Apex of ventral plate 



of gnathus broadly rounded ......... 15 



Dorsal process of valve strongly cygnate, almost Z-shaped; serrate-edged 

 projection as broad as and parallel with middle third or fourth of process. 

 Apex of ventral plate of gnathus tapered and narrowly rounded . . 14 



14 (13) Serrate-edged projection as broad as and parallel with middle third of dorsal 



process, anterior margin of projection straight (Text-fig. 47). Apex of 

 fulcrum tipped with 3-5 stout spines .... metallicata (p. 45) 



- Serrate-edged projection as broad as and parallel with middle fourth of dorsal 



process, anterior margin of projection slightly concave (Text-fig. 45). Apex 



of fulcrum tipped with 1-2 stout spines . . . ordinaria (p. 45) 



15 (13) Non-hyaline terminal third of each wing very shallowly excavate by hyaline 



area between veins M 3 and Cu lb (PL 98, fig. 873) . . ascaphes (p. 52) 



- Non-hyaline terminal third of each wing deeply excavate by hyaline area be- 



tween veins M 3 and Cu lb (PI. 98, figs 870-872) . . pulverosa (p. 48) 



Zamarada chrysothyra Hampson 

 (Text-figs 41, 42; PI. 97, fig. 862) 



Zamarada chrysothyra Hampson, 1909 : 122, pi. 4, fig. 50. Holotype $, Uganda (BMNH) 

 [examined]. 



J (PI. 97, fig. 862). Hyaline area of wings creamy buff sparsely irrorate with brown and 

 grey and finely edged distally with brown, grey and black; antemedial fascia brown irrorate 

 with grey; discal spot on fore wing pale grey, dark edged, that on hind wing black and minute. 

 Costa of fore wing and non-hyaline terminal third of each wing pale yellow (pi. 4, A3, cream) 

 irrorate and patterned with dark brown and black, as illustrated; dentate subterminal fascia 

 yellowish brown to dark brown, broad but ill-defined, densely irrorate with black between 

 veins M x and M 3 on each wing and at tornal angle of fore wing. In some examples the black 

 irroration in the subterminal area of the fore wing extends to the apex. Termen spotted 

 interneurally, the spots extended to streaks between veins R 5 and M 3 on fore wing and between 

 M x and M 3 on hind wing. Underside of non-hyaline terminal area uniformly dark brown 

 almost to termen, then buff. 



$ genitalia (Text-figs 41, 42). Uncus digitate. Ventral plate of gnathus as long as uncus, 



