^60 Records of the Indian Museum. [Vol. XVI, 



face as in Libellulinae. The cup formed by the interlocking of the 

 long, spinous jaws of the lateral lobes, in a way similar to the inter- 

 locked fingers of two hands. Base of mask extending as far back 

 as the mid pair of coxae. Lateral lobes long and curved, antler- 

 like, furnished with 6-7 long, spinous teeth, the proximal 3 or 4 of 

 which are half the length of the distal and the most distad furnished 

 with a small, moveable hook on its inner side (pi. xxxiv, fig. 2). 



Antennae long and filiform, 7 segments. Eyes stalked, crab- 

 like in appearance but not retractile, moderately small in compari- 

 son to the size of the head. Synthorax saddle-shaped and bulky. 

 Abdomen tumid, strongly carinated dorsally, the carina consisting 

 of a row of backwardly imbricated spines, one on each of segments 

 5 to 9 ; spinous prolongations to the sides of segments 8 and 9. 

 Legs very long and spidery, naked. 



Hah. — Running streams amidst curtains or masses of water- 

 weed. 



Subfamily LIBELLULINAE. 



2. Tholymis tillarga, Hagen. 



(PI, xxxii, fig. 2; pi. xxxiv, fig. i.) 



Poona, 9. 5. 18, 1513/H2. 



Length 26 mm. Length of hind femora 13 mm., of the hind 

 leg 22 mm. Length of abdomen 15 mm. 



Mask typically Libclluline, the lateral lobes meeting flush, by 

 the close interlocking of bordering rows of small saw-like teeth to 

 the number of 11. Mask deeply cupped (pi. xxxiv, fig. i). 



Antennae long and filiform. Eyes bluntly conical, the func- 

 tionating part comparatively large. Posterior to the eyes, the head 

 bears some coarse hairs. 



Synthorax stout, abdomen tumid, not carinated on the dor- 

 sum, the sides of the segments finely spined and ending posteriorly 

 in stout spines, these being very long and robust on the last three 

 segments. Internally the terminal spines are finely fringed with 

 longish hairs. Apical border of all segments finely fringed with 

 short, even hairs. 



Anterior and middle pairs of coxae clothed with long, coarse 

 hairs. Femora with 3 rows of minute, widelj^-spaced spines. 



Hah. — Conceals itself amongst masses of coarse water-weed. 

 Usually breeding in small tanks, disused granite quarries which 

 have filled with water being favourite spots. 



3. Tramca limbata, Kirby. 



(PL xxxii, fig. 3 ; pi. xxxiv, fig. 3.) 



Poona, 4. 5. 18, 1514/H2. 



Length of body 26 mm. Length of hind femora 13 mm., of 

 hind leg 32 mm. Length of abdomen 17 to 18 mm. 



Similiar to the last in m.ost respects but of heavier build. 



