NO. 1389. BRAGONFLIES OF BURMA AND 81 AM— WILLIAMSON. 



183 



Abdomen 37 mm. ; hind wing- 31. The species has been recorded from 

 Malacca, Mala}' Peninsula, Borneo, and Sumatra. 



14. VESTALIS SMARAGDINA De Selys. 



This species has l)een reported from the Khasia Hills, Burma, and 

 eastern Thibet. In Burma De Selys has recorded it for C'obapo and 

 Meteleo (September and October), lado in December. It is about the 

 same size as amcena^ from which it ma}- be distinguished l)y having the 

 sides of the thorax posteriorly yellow, the same parts being metallic 

 green in aiiKiena. Stria ragdlna is known to me only from descriptions. 



15. VESTALIS AMOCENA Hagen. 



Material studied: Siam, collection U.S.N.M., Khow Sai Dow Moun- 

 tain, 1,000 feet, Trong, Lower Siam, January-Fe))ruary, 1899, 4 males; 

 Trong, lower Siam. 2 males, -t females. 



Abdomen, male -lO mm.; female 40; hind wing, male and female 35. 

 One row of cells between Cu^ and Cu.^, excepting near their termina- 

 tion at the wing margin. The color of mouth parts and antenniv vary 

 greatly, apparently with age and sex, younger individuals and females 

 having the pale areas more extensive. The species occurs also in the 

 Mala}" Peninsula, Sumatra. Java, and Borneo. 



16. VESTALIS GRACILIS ( Rambur). 



Material studied: Burma, collection, P. A. N. S., 1 male; collection 

 Williamson, 2 males, 5 females. Siam, collection V. S. N. M., Trong, 

 Lower Siam, 1 male, 1 female. 



Fk;. l.i. — WlXGS OF MALE VESTALIS tiKACll.LS FKuM BUK.MA. 



Abdomen, male 56 mm., female 49; hind wing, male and female 40. 

 Two rows of cells between Cu^ and Cu^ for at least a short distance 



