432 TIVVJADJE. 



cell. First posterior cell very sliglitl}^ contracted at apex. Discal 

 cell very narrow, tapering almost to a point at the base. Sixth 

 vein slightly sinuous. AVing margin indented at the terminations 

 oi' the 6th' and 7th longitudinarveins. Great cross-vein a little 

 beyond the base of the discal cell. Halteres black, apical half of 

 knob white."' * (Edwards.) 



Length 3^ millim. 



Described from a single male from Madulsima, Ceylon, ID. v. 08 

 (2\ Bainhriqqe Fletcher) and a single female from Bentota, Ceylon, 

 13.vi. 90 {Lt.-Col. Yerlnmj). 



Types in the Jiritish Museum. 



The author adds : " The uniform blue-black colour of the dorsum 

 of the thorax will distinguish this species from any other in the 

 genus. Tt is the smallest species, except for T. polita:' 



Genus GYMNASTES, Bnm. 

 Gymnastes, Brauetti, Bee. lud. Miis. vi, p. 281 (1911). 



Genotype, Gymnastes violaceus, Brun. ; by present designation. 



Head set closely on the thorax, without any neck. Eyes 

 rounded, bare, widely sepa-rated above by a very broad frons, 

 separated on underside by a moderately wide, parallel, rather 

 convex space. Proboscis stout but very short ; ])alpi four-jointed, 

 narrow, cylindrical, normal lengtli. Antennaj of sixteen joints ; 

 the 1st scapal joint rather short, cylindrical, 2nd much narrowed, 

 about the same length; ttugellar joints cylindro-ovate, the 1st 

 longer than the rest, about equal to the 2nd scapal joint. Thorax- 

 juoderately arched ; coUare rather enlai-ged and distinct, suture 

 distinct, post-sutural depression not very pronounced ; scutellum 

 small. Abdomen linear, of only seven obvious segments. Genitalia 

 normal. Legs moderately long and slender ; anterior femora 

 slightly enlarged towards the tip, hind femora longer than the 

 others and very considerably enlarged at the tip, having the 

 appearance of "Indian clubs"; metatarsus more than half the 

 length of the tibia, the other joints short ; tibiae \Aitliout spurs at 

 the tip, but the hairs are considerably stronger about the tip of the 

 tibia. Wings elongated, narrowed at base and slightly curved 

 inwards near the basal part of the costa. One submargiual cell, 

 four posterior cells and a discal cell : auxiliary vein barely apparent, 

 so closely approximate to the 1st longitudinal vein that it is only 

 visible just before the middle of the latter vein, where that vein 

 takes a nudden V-sliaped bend downwards, forming a "kink'": 

 the 1st vein siiuious towai-ds its tip, ending beyond the middle of 

 the wing ; 2nd longitudinal vein beginning just before the middle 

 of the wing, running nearly straight to the margin ; the marginal 

 cross-vein a short distance from the tip of the 1st vein ; the 2nd 

 vein unforked ; the 3rd vein originating just before the marginal 



* The order of description of the jjarts of the body is slightly altered from 

 that of Mr. Edwards to preserve uuiformity with the rest of this work. 



