REVISION OF GENUS ZAMARADA 17 



Uncus with a pair of lateral, rounded, dorsally setose processes. Valve with 

 a coarsely spined ridge along apical half of central margin ; a second, shorter 

 ridge nearer apex, usually asymmetrical (Text-fig. 416) 



crystallophana-group (p. 245) 



Uncus and valves not so formed ........ 20 



Apex of uncus bilobate or apical margin of uncus excavate. Ventral plate 

 of gnathus strongly sclerotized, usually asymmetrical . . . . 21 



Apex of uncus not so formed ......... 22 



Lobes of uncus symmetrical and evenly rounded . . tortura-group (p. 255) 



Lobes of uncus symmetrical or asymmetrical; if symmetrical, then each lobe 



spatulate and tapered at outer apical angle . . euc/ian's-group (part) (p. 259) 



Fulcrum less than one-half as long as aedeagus, apex simple .... 23 



Fulcrum at least three-fourths as long as aedeagus, apex scobinate . . 24 



Apex of left valve finely tapered, that of right valve rounded and spatulate. 

 Ventral margin of aedeagus scobinate in apical fourth, without other 

 projection. Vesica without cornuti .... etnaciata-group (p. 250) 



Apex of left valve with tuft of long, strong setae. Apical fourth of aedeagus 

 with semi-circular, blade-like projection. Vesica with cluster of short, 

 arcuate cornuti ....... euphrosyne-group (p. 166) 



Fulcrum more than one and three-fourths as long as aedeagus, apex arcuate, 

 curved through 90-180 degrees and finely scobinate. Outer surface of 

 curved, apical part of dorsal process of valve shortly and coarsely setose 



cydippe-group (p. 199) 



Fulcrum less than one and one-half times as long as aedeagus, apex not arcuate. 

 Outer surface of curved, apical part of dorsal process of valve with fine, 

 hair-like setae ........... 25 



Right valve truncate at apex, left valve longer, rounded or tapered apicad; 

 each valve with transverse band of long, stout setae on dorsal surface of 

 apical fourth ....... scintillans-group (p. 162) 



Valves not so formed .......... 26 



Uncus long and slender, one-third to one-half as long as aedeagus. Right 

 valve more elaborately developed than left. Apical half of fulcrum coarsely 

 scobinate ........ flavicosta-group (p. 74) 



Uncus short, broad-based and tapered, less than one-fourth as long as aedeagus, 

 dorsal surface densely and coarsely setose. Apices of valves spine-tipped, 

 left side more elaborately than right . . . perlepidata-group (p. 225) 



Uncus with one or two pairs of lateral processes, or with shoulder-like projections 



at base ............ 28 



Uncus without lateral processes or shoulder-like projections at base . . 36 



Uncus with two pairs of lateral processes, the basal pair sclerotized, the apical 



pair membranous and setose .... po(ycfemon-group (p. 131) 



Uncus with one pair of lateral processes, or with shoulder-like projections 



at base, either sclerotized or membranous and setose .... 29 



Uncus long, one-third as long as aedeagus, constricted at mid-length; paired 

 lateral processes sclerotized, tapered and inclined caudad. Arms of gnathus 

 fused, but no ventral plate developed .... gaedei-group (p. 130) 



Uncus no longer than one-sixth as long as aedeagus; paired lateral processes 



membranous and setose. Ventral plate of gnathus well developed . . 30 



Ventral plate of gnathus asymmetrical. Greyish yellow hyaline area of each 

 wing immaculate; terminal non-hyaline area dark grey and bright reddish 

 orange ........ rufilinearia-gxoup (p. 168) 



Ventral plate of gnathus symmetrical. Wings not so coloured ... 31 



Lateral processes of uncus tapered and inclined caudad. Valve tapered and 



