1920.] F. F. lyAiDi^AW : Indimt Dragon flies. i6r 



Segments 8-9 are entirely bronze-black, and segment 10 is 

 blue, its posterior margin with a deep angular incision (as also in 

 the male) with a small basal spot of black, and small lateral spots 

 of the same colour. 



Legs as in the male, anal appendages white, shorter than the 

 last segment. 



Length of hinder-wing d* 9 24 mm., of al)domen cf 35 -f 1*5 

 mm. , 9 33 mm. 



The specimens grouped under heading B have puzzled me 

 greatly. They are all very immature, so much so that a speci- 

 men pinned for examination has shrivelled and has the abdomen 

 hopelessly contorted. So far as I can make out they are all 

 identical in structure, venation, and colour pattern with L. 

 cyanea. But the colouring is different, the blue of L. cyanea 

 being replaced by a shade of brown, which in the more nearly 

 mature specimens is fairly dark. 



Lastly as will be seen from the measurements given below 

 the size is smaller. The pterostigma is brown. 



Again the time of year when these specimens were taken 

 was later than that on which the specimens of series A were 

 caught for the most part, and the elevation less ; October as against 

 May, June, and 4,600 ft. as against 8,000 ft. 



However, lately I have received from Dr. Annandale 9 9 



^^^' from Tiger Hill, Darjiling, which are typical L. cyanea from 

 a height of only 3,300 ft. and a very immature 9 ^^^r' probablv 



taken about the same date (June) which in colouring shows little 

 difference from the immature females of series B, Hence I 

 conclude on present evidence, that probably the B series are 

 merely young examples of L. cyanea that have not attained the 

 adult pigmentation ; and that the smaller size of the single & fit 

 for measurement is possibly due to incomplete expansion of the 

 wings. 



But it would be well worth while for collectors on the spot 

 to determine whether or not there exists any seasonal form such as 

 is possibl}^ indicated by these specimens. 



The wing figured and the anal appendages of the male are 

 both taken from the least immature male of series B. As 

 already stated I can find no structural difterences separating them 

 from series A. 



Length of hinder-wing o?* 22 mm., of abdomen c. 33 mm. 



17. Lestes sp. f 



(Text-fig. 8.) 



2 9 9 Cherrapunji, Assam, 4,400 ft., 8-X-14, ^~. 



Length of abdomen 23 "5 mm., of hinder-wing 19 mm. 

 These interesting little specimens are exceeding like a Sym- 

 Pycna in appearance. Mr. H. Campion, who was kind enough to 



