154 [July. 



FORE-WINGS. HIND-WINGS. 



Kaafjord (5 ex.) Anastomosis Nervure. 



., Footstalk — Anastomosis „ 



Bosekop Anastomosis — Footstalk „ 



Nordreisen Footstalk ? 



Domaas Anastomosis Nervine 



Fokstueu Biangulate — Anastomosis „ 



,, (5 ex.) ...Anastomosis „ 



Spitzbergen Minute footstalk ? 



„ (J ? 



Nova Zeinbla Anastomosis Nervure. 



,, „ Shortly confluent. 



Vladivostock* ,, Point. 



Swedenf Minute footstalk Crossing. 



Iceland Anastomosis Minute nervure. 



A. FIMBU1ATA : 



Mon. Rev Short footstalk or Anastomosis Confluent in long space or 



at a point. 

 Ireland 

 (many examples). Distinct footstalk Shortly confluent or crossing. 



Bohemia Anastomosis Minute nervure. 



A majusciila. McL., and A. inornata, Wall., T do not know, but 

 one of the characters given for majuscula is the confluence of the 

 5th apical fork with the sector above it at a point. I gather that one 

 of Wallengreu's characters for inornata is the presence of a connecting 

 nervule. As a reliable criterion for separating two very closely allied 

 species, I fear the details given above prove that it is quite inadequate. 



I now proceed to refer to the apical abdominal segments, and to 

 the internal apparatus. With regard to the latter, although there 

 are other parts connected with it, my comparisons will refer to the 

 following : — 



(1) The paired lateral blades ; 



(2) The central triangular piece ; 



(3) The central foot-shaped piece. 



It is difficult in some preparations to make out all the parts 

 satisfactorily, but as a rule these three can be traced without trouble. 



Apatania Wallengreni, McL. 



The formation of the 9th segment and of the ovipositor makes the determina- 

 tion of the $ of this species an easy matter in most cases. 



The 9th dorsal segment is very distinct ; hind margin well-defined, slightly 

 produced at either side and faintly in the middle when viewed from above. Tubular 



* May represent a separate species. 



t More probably./; mbria ta ; a large example. Neither of these two examples were " prepared," 



