Dolichopodidae. 71 



lobes, terminating with a little knob above; the inner lamellæ some- 

 what short, whitish, curved downvvards, the lateral dilated at the 

 apex; the outer lamellæ somewhat small, almost semicircular, with 

 the dorsal margin straight; they are whitish with a blackish brown 

 margin, broadest on the ventral side; this side is serrated and has 

 inwards curved, brown hairs; at the dorsal apical angle there are 

 about three longer teeth with stronger hairs. Legs black, coxæ grey, 

 somewhat whitish pruinose on the anterior side. The legs have short, 

 black hairs, hind femora with longer hairs above in the basal half, 

 and below with a fringe of short, bristly hairs; posterior femora with 

 one preapical bristle. Front tibiæ with bristles above, and one on the 

 posterior side above the middle; middle tibiæ with about four antero- 

 and two postero-dorsal bristles, one dorsal above and one ventral 

 below the middle; hind tibiæ with an antero- and postero-dorsal row, 

 one dorsal bristle above the middle and one ventral towards the 

 apex, besides a ventral row of small bristles; hind metatarsus with 

 many bristles above and on the anterior side, and some below. 

 Wings somewhat yellowish, with a brown fumigation on somewhat 

 more than the outer half between the margin and the discai vein, 

 and seaming the posterior cross-vein. Veins blackish brown; the 

 discai vein with a distinct, angular but obtuse bend; axillary lobe 

 rather small, anal vein stretching somewhat long forwards. Squamulæ 

 yellow, with a black fringe. Halteres yellow. 



Female. Epistoma broader than in the male. Antennæ with the 

 third joint shorter. Hind femora with the fringe below shorter, and 

 hind metatarsi with fewer bristles. 



Length 4 — 4,5 mm. 



D. atratus is rare in Denmark, and only known from Jutland; 

 Rye and Funder near Silkeborg, (on the latter locality from Esben 

 Petersen), and Hald near Viborg (the author); the dat es are '-^/e — ^^/e. 

 It occurs in forests and on marshy piaces, often near water, and it 

 is said to be often found on alders. 



Geographical distribution : — Europe down into France, and in 

 England; it seems to have its northern limit in Denmark. 



2. D. Falleni Loew. 



1857. Loew, Neue Beitr. V, 12, et 1859. VI, 8. — 1862. Schln. F. A. 

 I, 213. — 1903. Kat. palåarkt. Dipt. II, 298. — Dolichopus melanopus 

 Stann. (nec. Meig.) 1831. Stann. Isis 1831, 61, 13. — Dolichopus nigripes 

 Fall. 1823. Dipt. Suec. Dol. 10, 3 p.p. — 1842. Stæg. Krøyer's Tidsskr. 

 IV, 28, 19 p.p. - 1843. Zett. Dipt. Scand. II, 515, 13. 



