494 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVI. 



Genus — Sympetrtjm. 



Fig. 33. — ^Wing neuration of Sympetnim ( X 2|). 



Sympetrwm, Newman. 1833. 



Head slightly variable in size and shape, moderately small or occasionally 

 proportionately large ; eyes moderately contiguous : forehead a little 

 prominent, rounded and with no marked f oreborder ; suture usuallj- flush ; 

 vesicle^moderately small, often very slightly notched. 



Lobe of prothorax very large, projecting, divided by a deep notch into 

 two lobes and bordei'ed with a ruff of long hairs. 



Thorax moderately robust. 



Legs moderately long and slim, their armature in both sexes similar ; the 

 hind femora with a row of numerous, small spines and with a few longer 

 ones at the distal ends ; mid femora somewhat similar but the spines a little 

 longer; tibial spines moderately short, fine, numerous ; claw-hooks slim and 

 long, situated about the middle of the claws. 



Wings relatively short and broad, generally hyaline ; reticulation fairly 

 close ; trigone in the forewing in line with that of the hind ; sectors of the 

 arc in both fore and hind-wings fused for a long distance ; arc between the 

 1st and 2nd antenodal nervures ; 8th nervure in the hindwing arising from 

 the anal angle of the trigone ; antenodal nervures 7| to 9|, the final incom- 

 plete ; 4th nervure with a single, flat curve or nearly straight ; 1 row of cells 

 between 5 and 5a (2 rows in occasional specimens) ; 1 cubital nervure to all 

 wings ; no supplementary nervures to the bridge ; trigone in the forewing relat- 

 ively broad, the costal side at least half as long as the proximal, traversed ; 

 trigone in the hindwing entire (occasionally traversed) ; all hypertrigones 

 entire ; 8th nervure in the hindwing flatly convex, nearly straight towards the 

 end ; the discoidal field strongly contracted at the termen, beginning with 3 

 rows of cells (occasional specimens with the discoidal field of uniform breadth 

 as far as termen and with only 2 rows of cells as far as the node); anal field of 



