AMALOPIIfA. EHAPHIDOLABIS. 517 



Genus AMALOPINA, gen. nov. 



This genus agrees with Amalopis except for the position of the 

 anterior cross-vein, which unites the 2ncl and 3rd longitudinal 

 veins, as usual in Diptera, and not the 2nd and 4th as in 

 Amalopis. This is the chief generic difference. Other characters, 

 which may or may not he constant in subsequently discovered 

 species, are the open discal cell coalesceut with the 3rd posterior 

 cell, and the presence of a supernumerary cross-vein across the 

 middle of the 2nd submarginal cell. There is only one species. 



370. Amalopina elegantula, sp. nov. 



J . Head : antennae yellowish ; palpi rather large, dark brown. 

 (Eemainder of head discoloured by some liquid, but apparently it 

 is yellowish.) Thorax pale yellowish ; a single brown, moderately 

 wide, distinct median stripe from anterior margin to suture, where 

 it vanishes ; and an outer stripe on each side commencing behind 

 the suture, and continued posteriorly to tlie metanotum ; sides 

 of thorax pale yellowish. Abdomen brownish, posterior margins 

 of segments darker; belly similar. Grenitalia brownish yeUow, 

 moderate in size, slightly pubescent, two-jointed, terminating in 

 hooks. Legs very pale yellow, tarsi whitish ; middle femora dark 

 brown (fore legs missing), Winc/s nearly clear. The 2nd longi- 

 tudinal vein forking soon after the origin of the 3rd vein ; the 

 2nd submarginal cell with a supernumerary cross-vein (situated 

 in one wing of the type specimen distinctly before the middle, and 

 in the other wing exactly at the middle) in a line with the mar- 

 ginal cross-vein ; discal cell open, coalesceut with 3rd posterior 

 cell, 2nd posterior cell petiolate ; posterior cross-vein just beyond 

 base of discal cell ; the base of the discal cell made up of' two 

 short veins forming the bases of the actual forking of the 4th 

 longitudinal vein. Halteres pale yellowish white. 



Length 2^ millim. 



Described from a single male taken by me at Dariilin^ 

 26. v. 10, •• ^' 



Tg2)e in the Indian Museum. 



I would not have described so imperfect a specimen but that 

 its characters seem to render the species easy of recognition. 



Genus RHAPHIDOLABIS, Os. Sac. 

 abis, Osten Sacken, Proc, Ent. S 

 Monog. Dipt. N. Am. iv, p. 284 (1869), 



Rhaphidolabis, Osten Sacken, Proc, Ent. Soc. Pbilad. 1865, p. 221 



^ Gbnotipe, llha2)hidolabis tenuijjes, Os. Sac, by original de- 

 signation. 



Head : eyes distinctly pubescent, approximate on underside of 

 head ; frons rather broad ; a small bump over the antennae, which 

 becomes much reduced in size in dried specimens. Proboscis 



2l2 



