Dolichopodidae. 367 



is not shorter than the second joint; finally it is a little smaller. As 

 Zetterstedt says: "Stæg. in litt." the name is originally due to Stæger, 



C. armatus is rare in Denmark; Stæger detected it on Amager, 

 where he took it in some number, of which he sent Zetterstedt the 

 type-specimens ; further it has been taken on Funen at Hoffmans- 

 gave, and in Jutland at Horsens, Gjerlev near Randers Fjord and 

 Struer (H. J. Hansen). The dates are in August. It occurs especially 

 on commons near the shore. 



Geographical distribution: — Northern and middle Europe down 

 into Germany ; tovvards the north to southern Sweden, and in Finland. 



5, C. pilosellus Zett. 



1843. Zett. Dipt. Scand. II, 606, 92 {DoUchopus). — 1903. Kat. palåarkt. 

 Dipt. II, 346. 



Male. Vertex and frons æneous, somewhat pruinose. Epistoma 

 narrow, yellowish, darkest below. Palpi yellowish grey. Occiput 

 greenish, greyish pruinose ; postocular bristles black above, the hairs 

 below whitish. Antennæ black, third joint triangular, slightly elongated. 

 Thorax dark olive or somewhat æneous, with a greenish middle stripe; 

 it is somewhat brownish pruinose. Scutellum bluish or violet. Pleura 

 greenish or bluish, a little grey pruinose; propleura with pale hairs 

 and black prothoracic bristle. Abdomen greenish, a little greyish 

 pruinose, with short, black hairs and short hindmarginal bristles at 

 the sides, long on the first segment. Venter greyish. Legs yellow, 

 front coxæ grey at the base, and whitish pruinose anteriorly; posterior 

 coxæ grey; front femora narrowly darkened above and below, and 

 middle femora below; tarsi, except the basal part of metatarsus, 

 blackish or brown. The legs have short, black hairs; coxæ pale-haired, 

 front coxæ with some black bristles at the apex, hind coxæ with a 

 black bristle on the outside ; front femora very slightly thickened, front 

 legs without bristles; middle femora with a row of about six bristles 

 below, longest towards the base, and at the apex with a very small 

 excision and some short hairs ; middle tibiæ thin at the base and here 

 with a flat lobe below, further with a row of short hairs on the 

 ventral side, a row of long, not pointed bristles on the posterior side, 

 and three bristles in the middle and one before the apex on the 

 anterior side; middle metatarsus simple, about as long as the two 

 following joints; hind femora with some thin bristles below in the 

 middle and towards the apex on the posterior side, and with a 

 preapical bristle; hind tibiæ with long, thin bristles and hairs on the 

 antero- and postero-ventral side, not going quite to the apex, and 

 with some dorsal bristles in two rows; hind metatarsus a little shorter 



