290 Records of flic ludinn M^a^einn. [Vol. XV, 



median space, which .with the rather paler transverse suture divide 

 this part apparently into four subequal shining dark spaces when viewed 

 from above. Two fine, well separated black lines run from the anterior 

 dark spaces nearly to the front margin Humeri yellowish. Scutellum 

 yellowish, metanotum shining blackish-brown, the middle third 

 yellowish. Tarsi yellowish -white, except about basal two-thirds of 

 metatarsi. 



Described from two $ $ in the Indian Museum from Mahabaleshwar, 

 Satara District, 4,200 ft., 13— 16-iv-12 {Gravely). 



Limnobia marginata, sp. no v. 

 (Plate viii, fig. 7.) 



$, Assam. Long. 8 mm. to tip of ovipositor. 



Body brownish-yellow; 1st scapal joint, proboscis, palpi and upper 

 part of occiput and neck black or blackish. A large shining black spot 

 at base of each abdominal segment, narrowed behind and reaching hind 

 margin so that all the spots are united into a more or less angulated 

 dorsal stripe, variable in extent, as in one specimen the black colour 

 fills nearly all the surface and in another the spots are barely connected. 

 Ovipositor rather large, brownish on upper side and basal section of lower 

 valves. Femora yellowish, a broad black apical ring ; tibiae dull 

 brown ; tarsi black. 



Wings pale grey ; costal and subcostal cells black, the colour carried 

 round costa into submarginal cell at about which point it dies away. 

 A black spot over origin of 2nd vein, over marginal cross vein and 

 divergence of 2nd and 3rd veins, from which spot a narrow dark streak 

 runs along the " cross veins " ending at tip of 5th vein in hind margin of 

 wing. Halteres yellowish. 



Described from five (^ (^ in the Indian Museum from above Tura, 

 Garo Hills, Assam, 3,500—3,900 ft., vii-vii-17 {Keni'p). 



The very conspicuous costal black band should easily identify this 

 species from all except costalis, W., and this latter species has a median 

 dark line on the thorax and the legs all yellow. 



Limnobia confinis, sp. nov. 

 (^ $. Assam. Long. 9 mm. 



Very near indica, Brun. in general appearance but much larger and 

 more robust. No dorsal black stripe on thorax. Dorsum of abdomen 

 blackish-brown. Femora yellow, with moderately broad black apical 

 ring ; tibiae dull brownish-yellow ; tarsi black. Wing much as in 

 indica ; auxihary vein ending much before base of 3rd vein and distinctly 

 before half way between base of 2nd vein and marginal cross vein. 

 In indica the auxiliary vein ends distinctly beyond base of 3rd vein and 

 a Uttle beyond half way between base of 2nd vein and marginal cross 

 vein. This difference in the two species is very constant. There is no 

 suffusion over base of 2nd vein or only perceptible under close examina- 

 tion, but in indica there is an obvious though small suffusion at this 

 spot. 



