XXI. 



Archipsidii : Signum a single smooth horn with bulbed 



base. 

 Cnephasidii : Signum a dentate band. 



Peroneidii : Signum a single stellate plate. 



Phaloniadii : Large dentations covering the bursa. 



Olethreutidii : Signa two scobinate circles or discs; or 

 a pocket. 



Ancylisidii : Signa two triangular hollow plates. 



Epiblemidii : Signa pilleate. 



Ephippiphoridii : Signa two horns. 



Lipotychidii : Signa one horn. 



By means of our investigations we have had the pleasure 

 of adding some new species to the British list, viz. : 



Cnephasia genitalana, E.M.M. Vol. 51, 1915, p. 8. 



Eudemis pomedaxana, E.M.M., Vol. 51, 1915, p. 9. 



Lipoptycha aratana, E.M.M., Vol. 51, 1915, p. 10. 



Lipoptycha torrana, a species still awaiting description. 



Peronea fissurana, E.M.M. , Vol. 51, 1915, p. 327. 



Astatia sinuana, which has hitherto been considered 

 merely a variety of A. solandriana. 



Epiblema littoralana, E.M.M., Vol. 51, 1915, p. 327. 



On the other hand, we can find no difference from a 

 genitalic point of view, between the following pairs of 

 species : 



Argyroploce carbonana pnd A. nigricostana. 



Argrotoxa schalleriana and A. perplexana. 



Celypa striana and C. purpurana. 



Spilonota ocellana and S. lariciana. 



Rhopobota ncevana and R. geminana, 



In view however of the minute differences, which none 

 the less when detected, are found to be constant, separating 

 other pairs of species; and in the face cf the apparently 

 great and constant differences in the wing markings of the 

 above pairs, we do not feel able tc pronounce positively 

 upon their identity. 



