160 JOVRNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVI. 



Head ; eyes brown above, olivaceous at the sides and pale green below -. 

 vesicle brown ; occiput olivaceous ; epistome and clypeus pale brown or 

 greenish brown. 



Prothorax : frosted with blue in adult specimens. 



Thorax : frosted entirely with bright blue in adult specimens. Juvenile 

 males and females with short, brownish, humeral bands and 2 lateral, 

 ditfuse, whitish-yellow stripes. The humeral stripe bordered with dark 

 brown ; the lateral bands extending from humeral region to spiracle and the 

 posterior one covering the greater part of the metepimeron. The general 

 ground colour a dirty brown or pale yellow. 



Legs brown. 



Wines : arc between the Ist and 2nd antenodal nervures : 2 rows of cells 

 between 5 and 5a : 8th nervure in the hindwing at the anal angle of the 

 trigone ; trigone in the hindwing often traversed ; antenodal nervures 

 12-16 ; base of wing entirely hyaline, or short, safl'ronated rays in the 

 hind. 



Stigma small, reddish-brown ; membrane white. 



Abdomen of the male, the base laterally slightly, dorso-ventrally 

 but little more dilated. Broad and depressed and gradually tapering to 

 the end. Frosted entirely with bright blue. In the female nearly cylin- 

 drical, yellowish or greyish brown, with narrow dark borders. Brighter 

 coloured beneath. 



Genital organs of male : lamina low, broad and flat, inclined to body- 

 axis at about 30°, the end rounded and slightly notched. Tentacular 

 uniformly high, the internal a blunt hook, directed somewhat to one side 

 and backward. The external separated from it by a somewhat deep notch, 

 a little depressed, cupped and oval in shape. Lobe moderately high and 

 rather shallowly arched. The whole very small. 



Genital organs of the female : lateral border of the 8th abdominal 

 segment fairly strongly dilated, its border spined and bordered with black. 

 End of 8th ventral plate with a small shallow incision, small yellowish lobes 

 projecting a little posteriorly ; 9th ventral plate tumid, flattened and 

 furnished with strong, broad, lateral hooks. 



Hab. Quetta ; Kashmir, Assam. 



19- 0. tceniolatum, Kirby. 



LUndlida tceniolata, Schneider. 

 Lihellula toeniolata, Brauer. 

 Libellula anceps, Selys. 

 Orthetfum brenisUjlum, Kirby. 

 Ovthrtrum hyalinum, Kirby. 

 Expanse 50-60 mm. Length 35-40 mm. 

 Head ; eyes brown above, pale opalescent green at the sides and 

 beneath ; occiput, and vesicle olivaceous ; epistome and clypeus pale 

 olivaceous or pale yellow ; labrum yellow. 

 Prothorax : frosted with blue, no markings. 



Thorax; in adult males, frosted with blue and the markings barely or 

 not discernible ; in juvenile males, a broad, light brown fascia on the mid- 

 dorsum bordered oubwardly by pale olivaceous, a broad, humeral, warm 

 brown fascia bordered anteriorly and posteriori}' with black, laterally 2 

 broad, brown fascia, bordered in front by a pale whitish green stripe, 

 the hind fascia covering the whole of the metepimeron. 



Legs black, the femorte yellow at the bases. Frosted densely with blue 

 which conceals most of the colouring. 



Wings : arc between the 1st and 2nd antenodal nervures or occasionally 

 opposite the 2nd ; 2 rows of cells between the 5th and oa, even in the 

 smallest specimens ; 8th nervure at the anal angle of the trigone or 



