62 Mr. E. McLachlan on 



Tabula magnitudinum. 



P. alpina, exp. alar. 12-13| lin. (anglic.) = 25-28 millim. 



P. caucasica ,, ,, 12 lin. =r25 mill. 



P. communis „ „ 12-15| lin. =25-32 mill. 



P. germanica ,, ,, 10-12 lin. =z 2 1-25 mill. 



P. gihherosa ,, ,, 12 lin. =25 mill. 



P. connexa ,, ,, 13 lin. =27 mill. 



P . mericUonalis „ 12-15 lin. =25-31 mill. 



P.annexa „ „ 13|-14 lin. =28-29^ mill. 



P. GUUanii „ „ 10^-13 lin. =22-27 mill. 



P. cognata „ „ 13^-141 lin. =28-30^ mill. 



P.pida „ „ 141-17 lin. =30^-37 mill. 



P. rujostigma ,, ,, 13 lin. =27 mill. 



A. Suh-costa in all the ivings becoming confluent with the 

 costa about half-ivay betiueen the base and apex. 



1. Panoepa alpina^ Eambur. (PI. IV. fig. 1). 



P. alpina, Rambur, Nevrop. p. 330 (1842). P. variabilis, 

 Brauer, Neurop. Aust. p. 35 (1857). 



Found only in elevated districts, and probably occurs 

 in all the mountain ranges of central Europe. Halloy in 

 Belgium (De Selys) . Has not yet been noticed in Britain. 



The species with the wings least spotted of all, there 

 being only scattered brown dots, whereof that at the 

 pterostigma is the largest. Third abdominal segment 

 ( $ ) considerably produced in the middle of its apex 

 above; sixth slightly narrowed from base to apex, trun- 

 cate ; seventh and eighth cone-shaped, each as long as 

 the sixth, narrow at the base, and the seventh with an 

 indistinct tubercle at that part above ; appendices of the 

 last segment straight, flattened, and linear, short ; claws 

 of this segment short. 



Rambur's type has lost, as he notes, the terminal seg- 

 ments, and he does not notice the short sub-costa, but 

 the example now in De Selys' collection, proves the 

 identity of the species with that of Brauer. 



