1920.] F. C. Fraser : Notes on Indian Dragonflies. 33 



and included spaces pale blue. A small, black projection into 

 this latter, almost enclosing a blue spot. 



Prothorax black with a narrow, anterior collar and two fine, 

 mesial points blue. The free border of the posterior lobe fi.nely 

 blue. 



Thorax black on the dorsum, blue at the sides. A narrow, 

 blue humeral line on both sides. 



Legs whitish, the distal ends of the femora black. 



Abdomen greenish blue, the last three segments sk}^ blue. 

 Marked on the dorsum with black as follows : — A subquadrate 

 spot on the ist segment connected to a black apical ring, broad 

 streaks on all segments from 2 to 8 which are incomplete basally 

 and connected apically with black annules. The streaks dilated 

 near the apical end on segments 2 to 6. Two small, tongue-like 

 spots at the base of the 9th segment which are situated subdorsally 

 and extend for about half the length of the segment. The loth 

 segment immaculate. A spine on the ventral surface of the 8th 

 segment. 



Wings. — Petiolation ceases before the level of Ac ; arc at the 

 2nd antenodal nervure ; postnodals 10 in the forewing, 9 in the 

 hind. 



lyength of hind-wing 17 mm., of abdomen 24 mm. 



