ISDIA N DBA (1 OXFL IJJS. 



62") 



•^ ^• 



6 7 8 



I 



9 



Fiu'. 7. — Win.ys of Amphithemis vaciUans (x;0 showin<;' main neiiration. 

 .. 8. — Male secondary sexual organs of same viewed from the side (xlG). 

 .. 'J. — Anal appendages of male of same (XlGJ. 



Expanse 54 mm. Length 36 mm. 



Male difters according to its age. Male, subjuvenile and juvenile speci- 

 mens and females : — Labrum, labium, epistome and clypeus white ; front 

 and vesicle metallic green. 



Thorax yellowish, somewhat darker or brownish on anterior dorsum. 



Abdomen long and very slim, segments 1 to 3 yellow, 4th segment 

 similar but the borders and distal end narrowly black, .5th to 7th segments 

 black with narrow yellow dorsal spots, 8th to 10th entirelj' black. 



Adult males entirely black without any yellow markings. 



Wings : trigonoin fore-wing entire ; subtrigone usually traversed once and 

 very seldom entire, occasionally in the female 3-celled ; trigone in the hind- 

 wing usually free but sometimes traversed once or twice or the trigone of 

 one side may be traversed and that of the other entire. Usually 1 cubital 

 nervure in fore-wing and 3 in the hind. Stigma 2 mm. Superior anal 

 appendages of male slim, bases approximating, the ends long and taj^ering 

 and curving strongly dorsalwards. 



Genital organs of the female': lateral borders of the 8th segment not 

 dilated; vulvar scale very small and very sharply roiuided. 



Hab. Burma, Bhumo and Karen Hills. 



H 



