INDIAN DRAG0NFLIE8. 261 



Head relatively small, eyes contiguous for a considerable extent, 

 forehead rounded, with no definite foreborder, vesicle prominent, suture 

 deep. 



Prothorax with a small, rounded, hidden lobe. 



Thorax long and narrow. Legs long and narrow, hind femora with 

 a row of widely-set, short spines and a few slightly longer ones at the 

 distal end, mid femora with a row of gradually lengthening spines, tibial 

 spines long and numerous, claw hooks robust, situated just distal of the 

 middle of claws. 



Abdomen relatively broad and rather short, somewhat depressed in the 

 male, cylindrical in the female, tapering to the end in the male, more 

 parallel sided in the female. 



Wings short and broad, reticulation very open and indistinct, trigon* 

 in the forewing just distal to the line of the trigone in the hind, entire, 

 very broad, the costal and proximal sides being subequal, its relation to 

 the hypertrigone rather more than a right angle, trigone in the hindwing 

 at the arc, entire, arc between the Ist and 2nd antenodal nervures, its 

 sectors separated in the forewing and joined for but a short distance in 

 the hind, 8th nervure arising from the anal angle of the trigone, or slightly 

 separated, 6 antenodal nervures, the end one complete, 1 cubital nervure 

 to all wings, no supplementary nervures to the bridge, all hypertrigones 

 entire., 4th nervure in the forewing with a very flat convexity, 1 row of 

 cells between 5 and ^a, 8th nervure in the forewing short, strongly curved, 

 2 rows of cells in the discoidal field, the latter dilated at the termen, 

 loop moderately short and straight, its mid-rib nearly straight, no divided 

 cells at the trigone but occasionally some at the outer angle, cells in the 

 anal area long and narrow, arranged in oblique rows, stigma medium 

 sized, membrane large. 



Sexual organs : male : lamina depressed, tentaculse small, not pro- 

 jecting as much as the lobe, broadly triangular, the hook turning back 

 and outwards, lobe small and rounded. Female : 8th abdominal segment 

 not dilated, vulvar scale projecting, split into two processes. 



74. yEthriamantha brevipennis brevipennis, Kis., Coll. Zool. Baron de Selys, 

 Fasc. XVI, 1913. 

 Libellula brevipennis, Ramb. Neur, p. 114 (1842). 

 Diplacina brevipennis, Brauer, Zool. bot. Wien, 18 p. 733 (1868). 

 ^thriamantha brenpennis, Kirby, Trans. Zool. Soc. Lond. 12, p. 283, 

 tab. 53, fig. 3 (1889)— Id., Cat., p. 24 (1890)— Selys, 

 Ann. Ent. Soc. Belg., 41, [82. (1897)— Ris, Jena, 

 Denkschr., 13, p. 346 (1908). 

 Urothemis brevipennis, Selys. Ann. Mus. civ. Genov. 30, p. 468 (1891). 



Expanse 54 mm. Length 30 mm. 



Male : eyes reddish above, lilaceous at the sides and beneath : face and 

 epistome ochreous : vesicle yellow : occiput olivaceous. 



Prothorax pale brown. 



Thorax reddish brown, no marking. Legs black, the hind femora having 

 a bright crimson spot at the base. 



Wings hyaline with the extreme base a light golden yellow, this colour 

 extending out as far as the Ist antenodal nervure, the cubital nervure, 

 and for a few cells in the anal field adjacent to the membrane, in the 

 hindwing, the extent of this colour is rather more, going beyond the 1st ante- 

 nodal nervure but not reaching the arc or the trigone. There are also 

 some dark brown rays in the intercostal and cubital spaces and a spot in 

 tiie anal field. Stigma reddish brown. 



Abdomen red on the dorsum, ochreous or yellow at the borders. 



