36 Records of the Indian Museum. [Vol. XIII, 



the Dragonflies of Burma {Ann. Mus. Civ. Genova, (2) X fXXX), 

 p. 491, 1890) for spuria and quadnmaculata. I have not seen an 

 example of Foerster's R. adamantina , but I think it will be found 

 to be a race of cuneata. 



The members of this group are I think the most brilliantly 

 coloured and beautiful of all the genus. 



A. Apical spot on hind-wing always approaching 



to within two cell-rows of anterior wing inar- 



gin (post-nodal costal and post-nodal radial 



rows). 

 Large species (hind-wing 26 mm. long or more). 

 Range: Himalaya, Darjiling eastwards . R. cuneata, Selys. 



B. Apical spot on hind-wing never less than 4 cell- 



rows from anterior wing margin . ... R. feiiesti'ella, Ramb. 



a. Large form, hind-wings 25 mm. or more in 

 length. 



Range: Khasia Hills ... ... v3ice spiii'ia. Selys. 



h. Smaller form (hind-wing"s 23 mm. or less in 

 length). 



Northern race. 

 Range: Himalaya (Darjiliny') to Burma race ijiiadrimactilatn. Selys. 



Southern race 

 Rang'c : Burma; Sirun to Sint^apore . race fcnesfrcl la, Ramb. 



27. Rhinocypha cuneata, Selys. 

 (PI. II, fig. 4). 



R. ciii/catn. Kirby, Cat. Odonata, p. ii^. 



Williamson, Proc. U.S. Nat. .Mus., XXV II I. p. 173. 



Specimens examined from Darjiling District and Gopaldhara, 

 16 cf cf , 2 9 9 . 



Scarcely two of the males are alike in detail, though the 

 general resemblance is close. Variation consists chiefly in differ- 

 ences in size of the apical hyaline spot of the hinder wing, and in 

 the extent of subdivision of the median series of spots ; in the 

 example figured (from Gopaldhara) this series is broken into three 

 areas, more usually it consists of two only ; one specimen shows 

 three on one side and two on the other. The average length of 

 the hind-wing of the male is about 27'5 mm., extreme measure- 

 ments are 26*5 mm. and 28 mm. 



28. Rhinocypha fenestrella quadrimaculata, Selys. 



A*, ijund ri'Uiiculatu. Kirb}-. Cat. Odonata, p. 112. 



Williamson, Proc. U.S. Nat. Mus., XXVIII, p. 1 yf), 



hg. 8. 

 Martin, Mission Pavie, Neuropleres (sep. I, p. 17. 



Specimens examined from Darjiling District, Sikkim, Gopal- 

 dhara, Narbong Valley, Tenasserim. 



Average length of hind- wing (22 specimens) 22*5 mm., ex- 

 tremes 21-5 — 23 mm. 



Williamson {loc. at.) has pointed out that quadnmaculata may 

 be distinguished from fenestrella by having the anterior of the 



