128 Orthorrhapha brachycera. 



ally the third joint short. Wing with the axillary lobe a little smaller. 

 Squamulæ with the fringe black. 



Lenght 3,7 — 4,3 mm. 



D.nubilus is rather common in Denmark: Copenhagen in gardens, 

 Amager, Rørvig, Frederikssund, Faxe Ladeplads and on Egholm at 

 Skelskør; on Funen at Odense and Hoffmansgave, and on Fænø; in 

 Jutland at Horsens, Nebsager near Horsens, Hald near Viborg and 

 Bovbjerg, and on Bornholm at Hasle and Allinge. My dates are 

 ^'k—^'ls; it thus occurs somewhat early, I took it in some number on 

 Egholm at Skelskør on ^^in, but the specimens were all fresh. It 

 occurs in low herbage and on bushes on humid piaces, but especially 

 at the shore, on Carex and Garduus. 



Geographical distribution : — Europe down into southern Italy ; 

 towards the north to middle Scandinavia, and in Finland. 



34. D. latilimbatus Macq. 



1827. Macq. Soc. Se. Lille, 1827, 65, 14, et 1834. Suit. å Buff. I, 

 464, 26. - 1838. Meig. Syst. Beschr. VII, 162, 59. — 1859. Loew, Neue 

 Beitr. VI, 12. — 1862. Schin. F. A. I, 215. — 1903. Kat. palåarkt. Dipt. 

 II, 299. — Dolichopus vulcjaris Stann. 1831. Isis, 1831, 129, 24. 



Male. Vertex and frons green. Epistoma narrow, silvery white, 

 with a shght, but distinct, white pubescence. Palpi yellow. Occiput 

 green or æneous, grey pruinose ; postocular bristles white belovv, black 

 above. Antennæ sliort, about as long as the head, third joint trian- 

 gular, as long as broad; they are black, the basal joint slightly and 

 inconspicuously yellowish below at the apex. Thorax dark green or 

 more æneous, slightlypruinose, shining;scutellum fmely yellow pubescent; 

 postscutellum green, greyish pruinose. Pleura greenish or æneous, 

 grey pruinose; propleura with pale hairs and a black prothoracic 

 bristle. Abdomen dark green, with more or less golden or coppery 

 reflexes; it is somewhat greyish white pruinose at the sides and 

 has dark hind margins to the segments; it is clothedwith short, black 

 hairs, and has longish hindmarginal bristles, a little longer on the 

 first segment. Venter greenish grey, a little pale-haired. Hypopygium 

 black or greenish black, greyish pruinose; eighth segment with black 

 hairs; the posterior ventral lobes of a shape as in nubilus, but more 

 obtuse and less broad, and likewise with some hairs at the margin; 

 the inner lamellæ much shorter than in nubilus; the outer lamellæ 

 larger, the apical part roundish triangular; they are whitish with a 

 black margin along the apical edge; the dorsal apical margin has 

 small teeth with black, curved hairs, the ventral margin has shorter, 

 black hairs, and on the inside inwards curved hairs. Legs yellow, 



