Uolichopodidae. 191 



metatarsus almost only half as long as the second joint. The legs 

 have short, black hairs, posterior femora with one preapical bristle; 

 front tibiæ with a couple of bristles above, but none below; middle 

 tibiæ with two dorsal rows and one ventral bristle, and hind tibiæ 

 likewise. Wings slightly or somewhat brownish tinged ; veins black 

 or blackish; discai vein almost whithout bend and chiefly parallel 



Fig. 56. Wing of H. metallicus d". 



with the cubital vein; posterior cross-vein placed after the middle 

 and thus the tirst and second part of the discai vein approximately 

 of the same length; axillary lobe somewhat developed. Squamulæ 

 yellow, black fringed. Halteres yellow. 



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

 broad, grey. Antennæ shorter, third joint very short. Wings slightly 

 more tinged. 



Length 3,8—4,4 mm. 



The pupa is pale yellow, it has a length of 4,5 mm. 



H. metallicus is not rare in Denmark; Charlottenlund, Ordrup 

 Mose, Ermelund, Dyrehaven, Bøllemosen, Lyngby Mose, Ryget Skov, 

 Geel Skov, Ørholm, Brede, Tisvilde, Faxe Ladeplads; on Langeland 

 at Lohals; in Jutland at Funder near Silkeborg. My dates are ^/c — ^/s. 

 It occurs in low herbage in woods on humid piaces and at the horders 

 of water. The larva was found by Mr. Kryger in Ermelund in moss 

 on '^/4, and the imago came on ^^/s. 



Geographical distribution: — Northern and middle Europe down 

 into Gorsica; towards the north to southern Sweden. 



14. H. assimilis Stæg. 



1842. Stæg. Krøyer's Tidsskr. IV, 41, 36 (Dolichopus). — 1843. Zett. 

 Dipt Scand. II, 574, 63 (Dolichopus). — 1862. Schin. F. A. I, 211. — 

 1903. Kat. palaarkt. Dipt. II, 317. — Dolichopus aerosus 1838. Zett. 

 Ins. Lapp. 711, 16 p. p. 



Male. Vertex and frons greenish, densely grey dusted; ocellar 

 tubercle dark. Epistoma narrow, greyish white. Palpi dark. Occiput 



