INDIAN DRAGONFLIES. 



681 



Abdomen cylindrical, tumid at the base, a little thickened from the 6th to the 

 10th segments, black, marked with yellow as follows :— narrow, submedian 

 anmiles on the 2nd to 6th segments, nearly broken by the dorsal carina except 

 on the 2nd, the rings on 7 and 8 are nearer the base and on the latter not inter- 

 rupted. 



Legs black, femora brown. 



In the male, the 10th segment has a small tubercle at the base. Anal append- 

 ages brownish black, the superior a little longer than the 10th, curving conver- 

 gently, a little, thick, the outer border curved from its middle rather "abruptly 

 where it bears a sharp spine, the end blunt. Inferior appendages rather longer 

 than the superior, curving upwards a little, the end somewhat truncate. 



Female. The stripes and rings rather broader. Appendages black, conical, 

 pointed, shorter than the 10th segment, which is as long as the 9th. Vulvar 

 scale cleft into two small, leaf-hke processes, closely parallel and as long as the 

 9th segment. 



Teneral specimens have a vestige of 2 pale yellow marks at the base of the 

 labrum : the yellow rings on the abdomen are broader on the 4th to the 7th 

 segments. The male has no basal brown marking to wings and the 10th segment 

 and anal appendages are brownish yellow. 



Hah. Java. Martin mentions Assam, Borneo. 



E. vittata and vittigera are evidently very closely related, or are perhaps merely 

 varieties of one species. 



5. Epophthalmia frontalis, Selys., loc. cit., 1871. 

 Martin, loc. cit. 



Type male, in Selys's coll. Female unknown. 



This species which is closely related to the foregoing, and much resembles thenu 

 is distinguished by the much broader yellow annules on the abdomen and by 4 

 rather large yellow spots on the front, 2 at the base of the labrum and a yellow 

 band on the nasus. The costa is yellow. 



The abdominal rings are not a very reliabl i guide as they vary greatly in 

 breadth in vittata and are broad in vittigera. The spots on the front are the only 

 specific differences and it is more than probable that frontalis is merely a local 

 variety of the two species mentioned. The anal appendages of the three species 

 do not present any marked differentiation. 



Genus — Macuomia. 



Fig. (3) Win^s of Macromia moore/, male (x2). 

 Head large and globular ; eyes contiguous for a long distance; occipital 

 triangle small ; frons with a rounded foreborder, pointed rather sharply at the 

 outer" angles, the whole coated with dense, short bristles ; a similar row of brist- 

 les, on the lower part of the epistome as seen in Epophthahnict ; suture very deep. 

 Prothorax small. 



