A Dew specics of Trichoptera from Finnish Lapland. 



111 



philidae) is in the present inseet highly developed and in this 

 respect it shows affinity to his Äsynarchus devius. The neura- 

 tion and the gen italia accord more closely with Asynarchiis than 

 with S. alpestris, and accordingly in the meantime I retain the 

 species in Asynarchus as an aberrant form. 



Explanation of figures. 



A. Apex of abdomen of (f from above. 



-ß. Do. from beneath (object held in front ot Ob- 



server) ; sheaths not shown. 



C. Apex of abdomen of rf from side. 



Carluke, Scotland, January 1895. 



