212 Mr. F. W. Edwards' revision of 



18. Head bristles yellowish ; tip of Ax bent backwards javana, sp. n. 

 Head bristles black (normal) ; tip of Ax rounded . . 19. 



19. Veins (except Ax) not darkened at their tip . jacobsoni, sp. n. 

 All the veins darkened at their tips . . . fryeri, sp. n. 



20. Male abdomen with dark patches on the basal halves of segments 



2-6 21. 



Male abdomen without dark patches in this position . . 22. 



21. Thorax with fairly evident though ill-defined darker markings 



hancrofti, sp. n. 

 Thorax almost unicolorous yellow-ochreous . himalayana, sp. n. 



22. Vein Cu somewhat darkened .... nepalensis, sp. n. 

 Vein Cu not darkened, except at origin of Cuj didyma, Grim. 



FOSSIL SPECIES. 

 1. S. venusta, Lw. (1845). 



Although this species has only been imperfectly de- 

 scribed, it must, if Loew's figure of the wing is accurate, 

 be quite distinct from all known hving species. According 

 to this figure, 0% is not at all indented after leaving M3, 

 and Ax runs practically straight to the hind margin, while 

 in all hving species it is curved or bent downwards at its 

 tip. In addition to this Sc is not shown, but this is probably 

 an oversight; its presence has also been overlooked in 

 some of the recently described species. In all other 

 respects the descriptions of Loew and Osten-Sacken would 

 apply almost equally well to any of the other species. 



Copal (origin not stated). 



EECENT SPECIES. 

 Group I. 



Wings without the least trace of dark dots; tibiae quite uni- 

 colorous ; side pieces of male genitalia terminating in three spines. 



2. S. flava, Brun. (1911). 



Figs. 10 and 11. 



There is very httle to add to Brunetti's description. The 

 second joint of the antennae is dark brown; the posterior 

 margins of the abdominal segments with brown bands, 

 narrowed but not quite interrupted in the middle. The 

 tibiae and tarsi are entirely yellow, except the fifth tarsal 

 joint, which is dark brown. 



Type in the Indian Museum, Calcutta. 



Loc. Tenmalai, Travancore, S. India. 1 (^. 



