1880.] FROM N.W. INDIA. 327 



Female. Head yellow, the upper part greener ; occiput obscurely 

 spotted ; thorax reddish brown, with two yellow lateral stripes edged 

 externally with black, and two yellow pleural stripes edged in front 

 by the black sutural lines ; legs varied with black, yellow, and red- 

 dish ; between the wings runs a row of yellow markings simihr to 

 those found in many female LibellitUncB ; abdomen dull reddish 

 tawny, with black lateral carinse and a black dorsal stripe, com- 

 mencing on the second segment and narrowed at all the sutures. 

 Wings nearly as in the male ; one specimen has thirteen antecubital 

 uervures. 



Campbellpore, Nov. 14 ( c? 2); Murree ( $ ), no date; upper 

 slope of Nian Jani, above Kalabagh, about 9000 ft., Sept. 16 ( $ ). 



Allied to the European O. carulescens, Fabr., and O. ramburii, 

 De Selys. 



7. Orthetrum triangulare, De Selys (nos. 3 and 4). 



Mnrree, Aug. 10 and 16 (d"), Aug. 16 and 18 ($). 



The male much resembles the inky-black O. carnaticum, Fabr., 

 which we have from Nepal. The females differ considerably in the 

 intensity of colouring of the thorax and abdomen. As in some allied 

 species, the particoloured eyes are remarkable in both sexes, the 

 upper portion being reddish and the lower parts dark brown. 



8. Orthetrum neglectum, Hamb. (no. 3). 



Hassan Abdal and Campbellpore, Oct. 14 (d' $) and Nov. 14 



^V: . . . 



The female is very similar to that of O. triangulare, but it is 

 lighter in colour; the wings are clear hyaline (rarely the case in 

 P. triangulare) ; and the pleune are uniform yellowish, with a small 

 black ocellus on the mesopleura. 



9. Trithemis aurora, Burm. (Plate XXXIII. fig. 3.) 

 A somewhat undercoloured male, without date or locality. 



The species, which I take to be T. aurora, has only 10-11 ante- 

 cubital and C-8 postcubital nervures on the fore wings, placed rather 

 widely apart. Like the next species it occurs both in India and 

 Ceylon, but seems to be rarer. We have no specimens from the 

 Philip[)ines, the locality given by Burmeister. 



10. Trithemis intermedia, Ramb. (no. 13). (Plate XXXIII. 

 fig. 4.) 



Hassan Abdal, Oct. 14 (cJ). 



May be distinguished from T. aurora by the more numerous and 

 crowded nervures — 14-15 antecubital and 8-9 postcubital ; the 

 markings of the thorax beneath Kcsemble those of T. rubriuervis, 

 De Selys. 



11. Trithemis kestiva, Ramb. (no. 12). 



Has=an Abdal, Oct. 14 (d~); Campbellpore, Nov. 14 (cJ). 



