OKIMAEGA. AXTOCHA. 425 



suture, nearly to the posterior margin. Sciitellurn pale yellowish, 

 metanotum brownish. Abdomen brownish yellow, sides narrowly 

 black. Belly similar. Genitalia brownish yellow, of moderate 

 size, pubescent, consisting of a large fleshy subconical 1st joint 

 and a 2nd much shorter, slender, hook-like joint with long stiff 

 black hairs on its underside. Legs', coxae pale yellowish, re- 

 mainder of legs brown. Wings clear, very delicately iridescent. 

 Auxiliary vein ending just beyond half the distance between the 

 origin of the 2nd vein and the marginal cross-vein ; the 2nd vein 

 beginning just before the middle of the wing, the praBfurca being 

 two-fifths of the length of the vein ; marginal cross-vein exactly 

 in middle of marginal cell, half-way between the tips of the 

 auxiliary and 1st veins ; the 3rd vein originating a little before 

 the marginal cross-vein, the basal portion distinctly elbowed ; 

 anterior cross-vein opposite marginal cross-vein, equal in length 

 to the basal side of the discal cell, which is open, coalescing with 

 the 2nd posterior cell ; posterior branch of the 4th vein forked 

 much before half its length, making the 3rd posterior cell nearly 

 elongate triangular ; posterior cross-vein in middle of wing, just 

 beyond origin of 2nd vein, thus making the 4th posterior cell 

 extraordinarily long. Halteres dirty white. 



Length 4 millim. 



Described from a single male taken at Kurseong, Darjiling 

 district, 29. vi. 10 (Annandale). 



Type in the Indian Museum. 



A second species of this genus has just been acquired by the 

 Indian Museum, collected by Mr. Beebe recently in Borneo. 



Genus ANTOCHA, Os. Sac. 



Antocha, Osten Sacken, Proc. Acad. Nat. Sci. Philad. 1859, p. 219. 

 Taphrophila, llondani, Prod. Dipt. Ital. i, p. 185 (1856). 

 Orimargula, Mikan, Wien. Ent. Zeitg. ii, p. 198 (1883). 



GENOTYPE. According to Coquillett (1910) the species selected 

 as type is saxicola, Os. Sac., one of the original two ; but according 

 to .Kertesz's Catalogue of Diptera the name of the species should 

 be opalizans, Os. Sac., with saxicola as a synonym. 



Head: eyes separated above by a narrow frons, below almost 

 contiguous. Proboscis cylindrical, moderately projecting; palpi 

 slender, rather prolonged, 1st joint elongate, 2nd and 3rd shorter, 

 3rd somewhat elongate. Antennae if bent backwards would not 

 reach the root of the wing; sixteen-jointed ; 1st scapal joint 

 short ; flagellar joints subglobular, apical joint rather elongate, 

 the flagellum bearing moderately short hairs on the upperside and 

 somewhat close pubescence on the underside ; no distinct verticels. 

 Thorax prolonged anteriorly, though not conspicuously, the suture 



