1918.] E. Brunetti: Oriental Tijnilidae. 31,3 



D. Long. 13-14|-mm. ; 2nd, 3rd and 4th posterior cells 



equally long carinicep^, Ender. 



DD. Long, at most- 9 mm. ; 4th posterior cell always longer 

 than :ird. 



E. Legs without any white colour. 



F. Pale brownish-white species ; long 8 mm. . . . albijiennis, de Meij 

 FF. Wholly yellow species ; long 5 mm. .... fava, sp. nov. 

 EE. Legs with at least the tarsi white. 



G. 2nd and 3rd posterior cells equally long, 4th always 



longer than both . tenera, Os. >Sae. {pal- 



lidiventris, Erun.) 

 GG. 2nd posterio cell as long as 4th, both distinctly longer 



than 3rd obficura, de Meij. 



Mongoma splendida, sp. nov. 

 ^ $. Assam. Long. 10 mm. 



Head. — Occiput and the very narrow frons ash-grey ; proboscis 

 yellowish ; palpi and antennae dark brown, base of former pale. 



Thorax. — Dorsum, scutellum and metanotum dark brown ; pleurae 

 and space between post sutural swellings yellowish. 



Abdomen blackish-brown, hind margins of segments a little darker ; 

 a little yellowish towards sides. Belly normally pale yellowish, hind 

 margins of segments paler, belly sometimes dark. 



Legs. — Coxae orange ; femora dark brown, paler towards base, 

 tips with moderately broad snow-white ring (one-twelfth the length) ; 

 tibiae snow-white, middle third dark brown ; tarsi snow-white, extreme 

 tips a little yellowish. 



Wings moderately dark grey, extreme tips barely perceptibly darker ; 

 costal cell just perceptibly yellowish. Subcostal cross vein in a line with 

 base of discal cell ; 2nd vein forking at or just beyond marginal cross 

 vein ; 2nd posterior cell distinctly but only slightly longer than 3rd ; 

 4th longer than 2nd, lengths of these three cells not exactly constant 

 but very nearly so. Posterior cross vein at base of discal cell or frac- 

 tionally before or after it. Halteres blackish. 



Described from several of both sexes from above Tura, Garo Hills, 

 3,500—3,900 ft., vii, viii-17 (Kemp). 



A beautiful species, quite distinct from all others. 



Mongoma kempi, sp. nov. 

 9. Assam. Long. 9 — -10 mm. 



Head orange-brown ; proboscis and palpi dark brown, latter paler at 

 base ; antennae yellowish-brown, paler at base. 



Thorax wholly orange-yellow. 



Abdomen brownish orange ; an indefinite blackish dorsal stripe on 

 2nd and 3rd segments with the hind margins more or less blackish ; 

 hind margins of 4th to 7th segments pale yellowish. Belly brownish- 

 yellow, the segments more or less blackish apically. Ovipositor orange 

 yellow. 



Legs orange-yellow ; trochanters blackish in front ; tips of femora 

 and extreme bases and tips of tibiae black. A row of about ten minute 

 spines at base on underside of femora ; smaller and fewer spines on 

 front pair. 



Wings grey, costal and subcostal cells yellow. 2nd vein forking 

 immediately beyond marginal cross vein ; 2nd and 4th posterior cells 



