176 D. S. FLETCHER 



N. Melsetter, Black Mt Inn, 10.xi.1965, 1 $ (BMNH). Zambia: Abercorn, xi. 1963 

 (D. Vesey -Fitzgerald), 2 ^ (NMK, Nairobi); Abercorn, i. 1956, 1 <$ (BMNH), 

 xii. 1963, 1 $ (NMR, Bulawayo). Zaire ('Belgian Congo'): Katanga, Shinkolobwe, 

 i.iv.1931, 1 <$ (BMNH); Elisabethville, i, vii, x, xi (C. Seydel), 1 $ (MRAC, Tervuren), 

 2 $, 2 $ (BMNH); ibidem, i.ii.i956, 1 $ (ZSBS, Munich). 



The METRIOSCAPHES-Grouf 



Characterized in the male genitalia by the sinuous form of the scobinate apex 

 of the fulcrum and by the form of the tapered, blade-like aedeagus, usually bearing 

 one or more digitate or tapered projections, and in the male hind tibia by the 

 presence of a capsule-like pocket of hair-scales, equal in length to the width of 

 the tibia. In the female genitalia the posterior margin of the lamella antevaginalis 

 is scobinate or serrate and excavate medially. 



Further, in the male genitalia the uncus is short, tapered and dorsally setose 

 basad, the ventral plate of the gnathus well developed and minutely scobinate, 

 the juxta slender and the vesica without cornutus. 



Three of the fourteen included species differ in some respects from the above 

 diagnosis in the male; plana has a simple, tapered aedeagus and an almost straight 

 fulcrum, but agrees in leg-structure; fumosa differs in leg-structure by having the 

 hind tibia dilate, enclosing a dense tuft of long hair-scales; rubrifascia, tentatively 

 associated with the group, has a simple aedeagus, straight fulcrum and simple 

 hind tibia. All three species accord well in the form of the lamella antevaginalis 

 in the female genitalia. 



Key to Species and Subspecies 



1 Aedeagus simple, without projection ....... 2 



- Aedeagus with one or two projections at about one-half .... 5 



2 (1) Valve tapered, dorsal margin straight or shallowly concave ... 3 



- Valve truncate, dorsal margin deeply concave at two-thirds phrontisaria (p. 190) 



3 (2) Apical fourth of ventral margin of valve coarsely spined . rubrifascia (p. 182) 



- Dorsal and ventral margins of valve smooth ...... 4 



4 (3) Non-hyaline terminal area of each wing uniformly brownish orange; dentate 



subterminal fascia only weakly defined (PI. 113, fig. 1026) plana plana (p. 183) 



- Non-hyaline terminal area of each wing brownish grey; dentate subterminal 



fascia strongly defined (PI. 113, fig. 1025) . . plana denticincta (p. 184) 



5 (1) Setose projection at one-fourth dorsal process of valve triangular or trapezoid, 



anterior side extending almost to base of process ..... 6 



- Setose projection at one-fourth dorsal process of valve slender and digitate 8 



6 (5) Apical third of valve abruptly narrowed with longitudinal, scobinate ridge 



extending to apex. Projection at one-half aedeagus tapered and blade-like, 

 longer than width of aedeagus ..... glareosa (p. 180) 



- Valve evenly tapered. Projection at two-thirds aedeagus spatulate and 



digitate ............ 7 



7 (6) Apex of valve narrowly rounded ; apical area smoothly sclerotized. Tip of uncus 



with minute projection inclined ventrad . . . seydeli (p. 179) 



- Apex of valve tipped with short spine; apical area minutely but densely 



scobinate. Tip of uncus beak-like, produced ventrad metrioscaphes (p. 177) 



