﻿130 'the entomologist. 



Agrionin^. 



Platycnemis pennipes, Pallas. — Two males, Gyiik-su, end of 

 May, 1913, May 24th, 1913 ; female, Asiatic side, June 19th, 

 1913, var. lactea ; male and female, Erenkeui, seven miles from 

 Constantinople, Asiatic side, May 11th, 1913, var. lactea. 



Ischnura elegans, Vanderl. — Male, Gyok-su, July 10th, 1913. 



Agrion scitulum, Eamb. — Female, Gyok-su, July 10th, 1913 ; 

 two males and two females, Kartal, at cattle pond. May 17th, 

 1914 (pair) ; female, Belgrade Forest, end of June, 1913. 



A. puella, Linne. — Male, European side, June 23rd, 1913 ; 

 female, Gyok-su, May 16th, 1913. 



M SCHNID^-G OMPHINiE . 



Gomphus schneiderii, Selys. — One male, Beikos, June 13th, 

 1913. This example demands a somewhat extended notice. 

 The species was originally described by De Selys (' Eevue des 

 Odonates,' p. 292, 1850). Later he regarded it as a race of 

 G. vidgatissimus, a view which has been adopted by Bartenef. 



De Selys gives the following differences between G. schneiderii 

 and G. vidgatissimus. In G. schneiderii : — 



(1) The size is smaller ; the form more slender. 



(2) The black design of the front similar, but the black lines 



more slender ; the lateral lobes of the lower lip in 

 great part yellow externally (more so than in vidga- 

 tissimus). 



(3) The thorax beneath after the hind legs is almost all 



yellow (in vidgatissimus it is almost all black). 



(4) The anterior femora have, besides the pale j^ellow inner 



band which one sees ordinarily in vidgatissimus, a little 

 line of the same colour at the base of the superior face, 

 and a similar line on the intermediate femora. 



(5) The superior appendages are a little different. In vidga- 



tissimus they are almost cylindrical and suddenly 



pointed at the extremity ; in the species of Asia Minor 



they are more divaricate, cylindrical, but insensibly 



pointed ; seen from the side they are truncate ventrad 



at a more oblique angle. The abdomen, it is stated, 



with a dorsal yellow line to seventh segment, but this 



character may be variable. 



The typical examples were from Kellemisch, in Asia Minor, 



and I possess a short series from Amasia agreeing very well in 



most respects with the above. The abdomen, however, has in two 



specimens the yellow line to segment nine (and strongly marked 



thereon), while in another the yellow line on eight and nine 



is much reduced. In addition to the more slender aspect, the 



wings appear to be narrower than in vidgatissimus, there being 



only three series of cells in the fore wings between Cu 2 and the 



wing margin, a feature usually noticeable in G. simiUimus. 



