Dolichopodidae. 325 



pale. As Zetterstedt says "Stæg. in litt." the narae is originally due 

 to Stæger. 



M. pallipes is rare in Denmark; Hellerup, Ordrup Krat, and in 

 Jutland at Frijsenborg and at Hald near Viborg (H. J. Hansen, the 

 author). My dates are "-^Vc — ^*^/8, It occurs on tree-trunks. Stæger 

 took it in September. 



Geographical distribution:— Northern and middle Europe down 

 into Austria, Hungary and Styria; towards the north to northern 

 Sweden, and in Finland. 



7. M. melancholicus n. sp. 



Male. Vertex and frons blackish, somewhat greyish pruinose. 



Epistoma dark metallic green, a little greyish pruinose just above the 



transverse ridge, the lower part a little pruinose at the sides. Palpi 



black. Occiput blackish, greyish pruinose; postocular bristles black 



Fig. 101. Antenna of M. melancholicus cf. X 65. From a dried object. 



above, pale below. Antennæ black, the third joint longer than broad, 

 with a little excision above just before the apex, in which the arista 

 is inserted ; this latter is short, only somewhat longer than the antennæ. 

 Thorax greyish black, somewhat brownish pruinose, duU; in the middle 

 there are two more grey stripes; the acrostichal bristles distinct; the 

 dorsocentral rows consisting of numerous short bristles in front and 

 four to five longer bristles behind, longest backwards ; the small hairs 

 on the front part of the disc somewhat numerous. Scutellum with 

 four bristles. Pleura dark grey pruinose; propleura with about four 

 blackish prothoracic bristles. Abdomen black, slightly metallic, almost 

 not pruinose, shining; it is clothed with short, blackish hairs, and has 

 somewhat long hindmarginal bristles on the first segment. Venter 

 greyish black. Hypopygium long but not thick, shining black; the 

 eighth segment a little greyish pruinose, with somewhat bristly hairs 

 at the upper margin; the ventral lobes and the outer lameilæ small, 

 brownish. Legs black, coxæ greyish pruinose; the knees very slightly 

 and narrowly, almost not, reddish ; hind metatarsus about half as 

 long as the second joint, without excision. The legs have short, 

 blackish, on the posterior side of the hind tibiæ more brownish, hairs ; 

 the bristly hairs on the anterior coxæ and the bristle on the hind 



