Dolichopodidae. 345 



ally in front and here duU; dorsocentral bristles about six to seven. 

 Scutellum with four bristles. Pleura greenish, æneous or coppery, 

 brownish yellow pruinose, behlnd more greyish; propleura with a 

 strong, black prothoracic bristle, and below it sorne paler hairs. Ab- 

 domen rather short, somewhat obliquely truncated at the end, green 

 or æneons, sometimes with coppery reflexes, greyish pruinose at the 

 sides; it is very thinly clothed with short hairs, which are black 

 above, pale at the sides and here a little longer in front. Venter grey, 

 with pale hairs. Hypopygium hidden, only the short, blackish grey 

 outer lamellæ are seen behind, projecting downwards. Legs nietallic 

 green, front coxæ somewhat yellowish grey pruinose, posterior coxæ 

 grey pruinose; also the femora a little pruinose; tarsi blackish towards 

 the end. The legs have short, blackish hairs, but also, especially on 

 front femora, the tibiæ and tarsi, pale hairs; 'coxæ pale-haired; the 

 front femora have Iwo rows of strong bristles below, those in the 

 posterior row longest, but less dense and not reaching the apex; 

 front tibiæ slightly curved, with a dense ventral row of short spines, 

 and with a few dorsal bristles; posterior femora and tibiæ with 

 various scattered bristles, especially some antero-dorsal on the apical 

 half of the middle tibiæ. Wings a little brownish, especially towards 



Fig. 107. Wing of H. balticus d. 



the anterior margin; veins blackish; the last part of the discai vein 

 very slightly undulated, and almost not converging towards the cubital 

 vein. Squamulæ dark yellow, with a pale fringe. Balteres yellow. 



Female. Epistoma not broader than in the male, more or less 

 brown below. Legs chiefly as in the male, only the row of spines 

 below the front tibiæ still more dense. Wings sometimes slightly 

 more brownish on the anterior part. 



Length 3 — 3,8 mm. 



H. balticus is not rare in Denmark; Amager, Bøllemosen, Skelskør; 

 on Funen at Veflinge; in Jutland at Horsens, Holstebro, Silkeborg, 

 Gjerlev near Randers Fjord, Hulsig north of Frederikshavn, and on 

 Læsø; on Bornholm at Rønne. The dates are in July and August; 



