18 



broad, indent towards scobinate tip; right longer, tapered, 

 curved. Uncus stout, pointed; pads hairy. Gnathos 

 atrophid. ZGdceagus slender sigmoid. Cornuti long band 

 of fine short spines. Juxta sub-ovate, cristae hairs 

 numerous. Saccus pointed. 



Ostium produced. Ductus bursse thickened. Bursa 

 globular, pannicular. 



Ellopia prosapiaria, Tr. 53 



Valva slightly emarginate, apex slightly widened, outer 

 margin curved bearing towards apex one or more short, 

 varying, pedunculate spines; costal arms slender, parallel, 

 hairy. Uncus bluntly pointed; pads raised hairy. Gnathos 

 atrophid. ^Edceagus slender, sigmoid, branched about 

 centre, longer arm closed, scobinate. Cornuti short, double 

 row. Juxta clavate, cristse hairs few. Saccus long 

 pointed. 



Ostium weak. Signum lunular, small, dentate. 



Bupalus piniaria, L. 4 3 



Valva short; costa spread over a large area, spined; sacculus 

 heavily spined above. Tegumen a deeply arched hood. 

 Uncus wide, trilobed. Gnathos large, strong, scobinate. 

 ^Edoeagus sigmoid, gibbose above. Saccus pointed. 



Ovipositor normal. Ostium strong, produced. Bursa 

 short, globular. 



The genitalia of this species bear a strong resemblance 

 to those of the Noctuid moth Cymatophora duplaris. 



Bistoninae. 



Valva narrow, simple, or spined. Uncus broad, strong, 

 hooded. Gnathos strong. Furca a fused thin transparent 

 plate. ^Edoeagus thumbed. 

 Ovipositor retractile. 



Biston strataria, Hufn. 

 Valva simple, sides parallel; costal half heavily spined. 

 Furca. fused, stout, tapered, tip hooked, Uncus blunt, 



