58 [March, 



de l'Acad. Sciences de Cracovie, March, 1913) from the Island of 

 Oesel (Livonia), which the author considers may he a European repre- 

 sentative species of 2E. serrata, Hagen. He gives a comparative table 

 of the differences between his species and 2E. serrata, but I am not 

 sure whether he lias had actual specimens of the latter before him or 

 relied on Martin's diagnosis (Coll. Zool. de Selys, iEsclmines, p. 37). 

 The Oesel species and that from Van seem to be different from 

 H. crenata, Hagen, of which I possess 2 $ £ and 1 $ from Siberia 

 (received from Bartenef as M. gigas), a pair of which have been 

 determined by Professor E. M. Walker, Toronto, who has examined 

 Hagen' s type of M. crenata. I have not seen M. osiliensis and 

 JE. serrata (the latter recorded from the Khirgis country and elsewhere 

 in Asia). It is well to say that the hamuli of 2E. crenata agree very 

 closely with the fig. of osiliensis, and the principal difference between 

 crenata and the other two seems to be in the form and size of the upper 

 and inferior appendages. The three, if distinct species, behng to a 

 group of closely allied forms. 



LlBELLULIN^E. 



Orthetrum brunneum, Fonscolombe. — 5 $ <$ , 1 ? , all mature, one 

 £ dated 18.VI ; also a few tenerals. The specimens call for no 

 special remark. The species ranges eastwards to Kashmir and Gobi. 



Libellula depressa, Linne. — 3 $ <$ , 1 ? (a very mature $ , 18. VI). 

 If anything rather smaller than Western European examples (h. w. 

 34-35 mm.). The species has been recorded from as far east as 

 Astrabad. 



Sympetrum striolatum, Charp. — 2 $ S > 2 ? ?. Call for no 

 special remarks. 



Sympetrum flaveolum, Linne. — 1 £ , 4 $ J , all teneral. Under 

 the average in size, one female measuring only 25 mm., h. w. The 

 condition of the single $ hardly admits of a satisfactory statement on 

 the point, but the yellow basal marking of the wings seems to be more 

 restricted than usual. 



Sympetrum decoloratum, Selys. — 3 $ $ , 2 $ $ . Although all in 

 rather teneral condition, there is no doubt about their appertaining to 

 this interesting form, which seems to take the place of S. vulgatum in 

 certain parts of the Mediterranean region. It ranges from Tripoli to 

 Quetta. Eis (Collections Zoologiques de Selys, Libellulinse, p. 631) 

 refers to this species at some length, and mentions two somewhat 

 immature examples of Sympetrum from Catalonia, which may probably 



