INDIAN DRAGONFLIES. 



143 



Expanse 52 mm. Length 30 mm. Stigma 2 mm. 



Head : labium bright yellow ; the middle lobe dark brown ; labrum and 

 face bright yellow ; vesicle and forehead a glossy metallic blue. 



Prothorax black. 



Thorax black with bright yellow markings as follows : — A broad humeral 

 stripe ending about half-way as traced upward, a tiny, inconspicuous spot 

 in line with and above the latter, laterally a broad, somewhat sinuous 

 stripe crossing the thoracic spiracle, separated from the humeral stripe 

 by somewhat less than its own breadth, a second stripe posterior to the 

 spiracle on the lower two-thirds of the side, a spot above it and the 

 greater part of the metepimeren yellow. Underside of the thorax deep 

 black, crossed by two small transverse, yellow stripes. Abdomen generally 

 deep black ; segments 2 to 5 frosted thickly with white and so appearing 

 blue. Deep black below, powdered with yellow ; a yellow spot on both 

 sides of segment 1, the distal border of segment 2 striped narrowly with 

 yellow ; the distal borders of segment 3 to 7 similar but the stripe rather 

 broader. 



Legs black, with the inner sides of the anterior femorse yellow. 



Base of wings yellow, this colour becoming paler and more diffuse as 

 traced towards the trigone. 



Secondary sexual organs of the male : tentaculse shaped like an oval leaf, 

 outwardly black, yellow in front, behind and on the inner side ; the inner 

 angle prolonged backward as small hooks ; lobe narrow and about two- 

 thirds the height of tentacuhe. 



Neuration of the wings very variable. 



2-3, 2-3 1 



; Cubital nervures 

 -3 



Type : — Arc 



2-3, 2- 



.).v) 



No supernumerary nervures 



1-0 



to Bridge 



Hypertrigones traversed 



0-0 



Female: unknown. 

 Hab. Burma and Bengal. 



8. Lyriothemis cleis, Brauer. 



-Wings of L. cleis ( X 2). 



Fig. 18. 



■ Expanse 78 mm. Length 42 mm. Stigma 2 mm. 

 Thorax dark brown or black marked with yellow. 

 Abdomen partly or wholly red. 



