12 A. WATSON 



Key to Species-groups and to the Species e/ulena 

 Males 



i Fore wing venation as in Text-fig. 3. Male genitalia (e.g. Text-figs, 9, io, 17, 19) : 

 valves without basal process ; diaphragma strongly concave but not extended 

 anteriorly above saccus ; eighth sternum with long, curved, paired posterior 

 processes ........ species-group strandi (p. 12) 



- Fore wing venation as in Text-fig. 1 . Posterior processes of eighth sternum ahort (e.g. 



Text-figs. 32, 59. 66, 73) 2 



2 Male genitalia : vinculum produced posterolaterally on either side into heavily 



sclerotized, trifurcate, claw-like structure ; uncus absent . . . efulena (p. 45) 



- Male genitalia ; vinculum without trifurcate structures posterolaterally ; uncus 



present ............. 3 



3 Male genitalia : heavily sclerotized, curved, acuminate process present at base of 



valve ; pouch-like diaphragma extended anteriorly above saccus ; uncus without 



sacs ......... species-group erosa (p. 28) 



- Male genitalia : without valve process ; diaphragma nearly flat ; each lobe of uncus 



with invaginate sac ...... species - group seydeli (p. 43) 



Species-group strandi 



Diagnosis. Fore wing venation as in Text-fig. 3. Hind wing as for erosa (Text-fig. 2). 

 o* genitalia : each lobe of uncus with beak-like, medial process ; valve broad and flattened, 

 divided in strandi ; diaphragma concave ventrally ; aedeagus lipped or spined at apex ; eighth 

 sternum with stout apodemes and long, curved, posterior processes, often not bilaterally 

 symmetrical ; eighth abdominal tergum with short apodemes. $ genitalia : signum cordate, 

 ovate or triangular. 



TYMPANUM 



4 



Fig. 4, Epicampoptera strandi glauca, ventral view of left side of second abdominal segment, 6* 



