19 rg.] F. F. LaidIvAW : Indian Dragonflies. i8i 



Male. 



Head. — Lower lip white, upper lip pale blue ; rest of head 

 black, including the antennae, but a pair of circular post-ocular 

 spots are blue, and inside these on either side a small cunei- 

 form mark. 



Proihorax black, the posterior lobe with a rectangular projec- 

 tion somewhat similar to that found in A. lacteola. 



Thorax. — Dorsum black to level of first lateral suture, with a 

 very narrow pair of blue ante-hunieral bands. Sides rich blue 

 with a broad black band somewhat irregular in outline on the 

 second lateral suture. Under surface black. 



Abdomen. — Segments i, 2 black marked with blue laterally. 

 Segments 3-7 blue marked with black. Segments 8-10 black ; 3-7 

 have each a black dorsal band occupying the whole length of 

 the segment ; this band is pointed apically. In each of these 

 segments, moreover, the distal third of the band is expanded 

 over the sides of the segment and encloses a lateral blue m irk. 



Anal appendages. — Upper pair black, margined with white, 

 rather longer than segment 10, curved inwards to meet at their 

 free extremities, somewhat hollowed out internally and hooked 

 downwards at the lip. 



Legs black, posterior surfaces of tibiae with white. 



Femai^E. 



The specimens that 1 take to be the female of this species have 

 the upper lip, the post- and ante-clypeus of an olive-brown colour 

 the frons and occiput black except for a comma-shaped blue 

 post-ocular spot and a fine transverse cream}' white line across the 

 occiput, uniting the spots. 



Proihorax black above, yellowish-white below. 



Dorsum of thorax black, with a pair of fine yellow ante- 

 humeral bands. Sides greenish-white, with a black line along the 

 second lateral suture. 



Abdomen, ground colour bluish- white. Each of the segments 

 has a longitudinal black mark covering the dorsum of the segment. 

 On each of segments 2-7 this mark is narrowed basally and 

 widened apically, narrowing again immediately before the apex 

 when it joins a narrow black apical ring. Segments 2, 6 have 

 a transverse gray-black m.ark extending downwards and forwards 

 from the widest point of the expansion of the dorsal black band 

 antero-laterally. 



Legs black, femora with a yellowish- white anterior band 

 tibiae with posterior band of the same colour. 



The second male from Talewadi is immature and imperfect. 

 The ground colour is a dull greenish-white. 



The males from Chalakudi are evidently recently emerged. 

 The anal appendages are exactly similar to those of the adult male. 

 The general colour is a buff white, no pattern developed. i\t first 

 sight they are very similar to young examples of A. lacteola, 

 with which I originally confused them. 



