Dolichopodidae. 301 



— Third joint of the antennæ in the male long and pointed, 

 arista not half as long as the third joint; hypopygium 

 large, wliite, with a short, brown peduncle ; outer lamellæ 

 short, white with black apex. Middie tibiæ in both sexes 

 with two bristles in the middie and two at the base, 

 hind femora slightly darkened at the apex 2. leuciirus. 



1. S. adpropinquans Loew, 



1857. Loew, Neue Beitr. V, 32 et.33 {Rhaphium). — 1862. Schin. 

 F. A. I, 200. — 1880. Mik, Verhandl. zool. bot. Gesell. Wien, XXX, 593. — 

 1903. Kat. palåarkt. Dipt. II, 336. — Rhaphium SchoUzii Loew, 1850. Stett. 

 ent. Zeitg. XI, 115 p. p. ?. 



Of this species I have only examined a female, I give therefore 

 the description of the male chiefly after Loew: Frons greenish grey. 

 Epistoma narrow, black, the lower half somewhat shining. Palpi 

 yellow. Occiput greenish grey, postocular bristles yellowish white. 

 Antennæ rather long: the two basal joints black, the third somewhat 

 broad, pointed from the middie to the apex, brown, the base and 

 the first half of the lower side reddish yellow ; the arista about three 

 quarters of the length of the third joint. Thorax and scutellum green, 

 grey pruinose, with indication of a slightly darker middie stripe. Pleura 

 green, dark greyish pruinose. Abdomen green, slightly pruinose, shining; 

 it is clothed with short, black hairs, and there are small hindmarginal 

 bristles, longer on the first segment. Venter greenish grey, Hypo- 

 pygium with the peduncle (seventh segment) thin and rather long, 

 black; the hypopygium itself large, swollen, chiefly black, shining; the 

 lamellæ whitish yellow. Legs pale yellow, front coxæ whitish; posterior 

 coxæ grey from the base outwards, towards the apex yellow; tarsi a 

 little brownish towards the end. Front metatarsus as long as the two 

 following joints together, hind metatarsus half as long as the second 

 joint. Legs with short, brown to pale hairs, pale espeeially below the 

 femora ; anterior coxæ with pale, bristly hairs at the apex, hind coxæ 

 with a pale bristle on the outside; front legs without bristles; middie 

 tibiæ with about four black bristles, hind tibiæ with live or six very 

 small bristles above. Wings hyaline, very slightly greyish ; veins brown; 

 the discai vein is curved upwards from the middie of its last part, 

 terminating a little above the apex of the wing, the first posterior 

 cell thus narrowed towards the end, as also the cubital vein is cm-ved 

 rather strongly downwards. Squanmlæ pale yellow, with a whitish 

 yellow fringe. Halteres pale yellow. 



Female, Epistoma broad, grey above, metallic blue below. An- 

 tennæ short, the third joint much shorter than in the male, elongated 

 oval, pointed; arista about of the length of the antennæ. 



