Dolichopodidae, 87 



a somewhat small, obtuse bend, the last part converging towards the 

 cubital voin; axillary lobe small, anal vein going forwards, Squamulæ 

 pale yellow, with a whitish fringe. Halteres whitish yellow, the 

 pedimcle brownish. 



Female. Epistoma broader than in the male, but not specially 

 broad. Antennæ about as in the male. Colour of the body bright 

 and shining as in the male, but generally more green or golden green. 

 Abdomen not pale-haired at the sides. Femora without long hairs 

 below, and hind tarsi simple. Wings without costal swelling, and 

 the blackenings a little weaker. The hairs of the squamular fringe 

 for the greatest part black. 



Length 5 — 6 mm. 



D. remipes is an interesting and beautiful species, I think the 

 most beautiful Dolichopus; it is rare in Denmark and was first taken 

 in this year (1912), when I took it in some number (9 males and 17 

 females) in Bøllemosen on ^/t and "/t. It occurs at water on water 

 piants, I took my specimens on the leaves of Galla palustris. As soon 

 as I savv the first male, I could see at the same moment that it 

 was D. remipes; it was especially sitting on the leaves, which were 

 quite down to the water surface, and it was rather restless and not 

 easy to catch, especially the males, which also were less numerous 

 than the females; as already noted by Wahlberg, it was never seen 

 on erect piants or in the herbage on the border. Wahlberg has 1. c. 

 some notes about its behaviour, and mentions that the males follow 

 the females "Gallorum more", hovering above them in the air, and I 

 observed the same. 



Geographical distribution: — Northern and middle Europe down 

 into Germany; towards the north to middle Sweden, and in Finland. 

 It occurs also in North America. 



12. D. tanythrix Loew. 



1869. Loew, Beschr. eur. Dipt. I, 274, 163. — 1903. Kat. palåarkt. 

 Dipt. II, 305. 



Male. Vertex and frons green. Epistoma somewhat broad, nar- 

 rowed downwards, white. Palpi blackish. Occiput greenish, some- 

 what bronze-coloured, greyish yellow pruinose; postocular bristles 

 white below, black above. Antennæ black, short, shorter than the 

 head, the third joint shorter than broad. Thorax green, at the sides 

 more bronze-coloured, slightly brownish pruinose, shining; scutellum 

 distinctly yellow pubescent; postscutellum greenish, grey pruinose. 

 Pleura greenish, grey pruinose; propleura with fine, pale hairs and a 



