156 BLEPHAROCEIUD;E. 



laterally, the two kinds separated by a distinct though narrow 

 unfacetted band ; in female, widely separated, the frons of uniform 

 width ; three ocelli. Antennae of fifteen joints, the two scapal 

 ones slightly differentiated.* Thorax moderately arched, narrowed 

 in front ; the transverse suture obvious. Scutellum semicircular. 

 Abdomen of seven or eight segments, long and narrower than 

 thorax ; in male slightly curved, with clubbed tip, the genitalia 

 moderately prominent ; in female less curved and thicker, with 

 short ovipositor. Legs very long and thin, two or three times 

 as long as the whole body, hind pair much the longest ; tibiae 

 with minute spurs ; metatarsus as long as or longer than the rest 

 of the tarsal joints together, and in the male with some short 

 bristles below at base ; 4th tarsal joint shorter than 5th, the 

 latter in both sexes with some bunches of minute bristles below ; 

 claws long. Wings quite broad, tips rounded, anal lobe very 

 large and angular; costa ending at tip of 3rd vein. The 1st 

 longitudinal vein, with which the auxiliary vein is united, very 

 close to the costa ; the 2nd vein beginning before the middle of 

 the wing and barely divergent from the 1st, ending a little beyond 

 it and towards tip of wing ; 3rd beginning very soon after the 

 1st at a sharp angle, ending at tip of wing, gently curved ; 

 anterior cross-vein at the angle of the 2nd, slanting backwards, of 

 moderate length ; 4th vein beginning at base of wing, forming a 

 gentle curve, the lower branch incomplete for some distance at 

 the base ; 5th vein forked at one-third of its length, the branches 

 widely diverging; 6th vein nearly straight, complete. The 4th, 

 5th, and 6th veins spring almost simultaneously from a common 

 stem quite near the base of the wing; posterior cross-vein absent; 

 squamae absent. Halteres long. 



Range. Previously known only from Europe and North America 

 Life-history. The papers by JDewitz, Kellogg, Weirseijski and 

 some others may be studied. The larvae and pupae live in clear 

 swiftly running water attached to the edges of projecting rocks 

 or stones over which the stream constantly flows. The imagos 

 seldom stray far from their breeding places. From Kellogg's 

 observations the life-cycle seems to take a month. The females 

 feed on the body-juices of small CHIRONOMIDJE, the food of the 

 male is not known. 



116. Blepharocera indica, Brun. 



Blepharocera indica, Brunetti, Rec. Ind. Mus. iv, p. 316 (1911). 

 <3 $ . Head : frons narrow, t dark grey or blackish ; ocelli 



* Kellogg (/. c.) shows 17 joints. "Macquart originally gave " ? 16." In 

 B. indica the last joint is constricted somewhat near the tip, which might 

 give the appearance of a minute 16th joint. 



t The head in each of the examples is either damaged or shrunken in 

 drying, so that the proportionate width of the frous is not easily gauged. It 

 is apparently quite narrow. 



