Dolichopodidae. 131 



bristles above, and generally one on the postero-ventral side, and 

 with a long, thin hair at the tip on the postero-ventral side; middle 

 tibiæ with three to four antero-dorsal bristles (one of them somewhat 

 dorsal), two postero-dorsal, and with one ventral below the middle; 

 hind tibiæ with two dorsal rows of bristles, one ventral bristle towards 

 the apex, and a ventral row of small bristles; hind metatarsi with 

 aboLit two dorsal, one anterior, and with only very small ventral 

 bristles. Wings a little brownish tinged, especially on the anterior 

 part; veins black or blackish brown, costa with a not large, some- 

 what elongated swelling; discai vein with a slight, quite obtuse bend; 

 axillary lobe small, anal vein going forwards. Squamulæ whitish, 

 with a black fringe. Balteres pale yellow. 



Female. Epistoma somew^iat broad, white or very slightly greyish. 

 Antennæ shorter than in the male, the basal joint distinctly shorter, 

 and the third joint broader than long. Front coxæ with a few black 

 hairs downwards; front tibiæ with no long hair at the tip; hind 

 tibiæ slightly or almost not darkend at the apex. 



Length 3,5 — 4 mm. 



This species may be known by the pale coxæ, only the middle 

 coxæ having a grey stripe; from the other species in this group as 

 notahilis, caligatus and Imeatocornis it is also known by the lighter 

 antennæ. 



D. linearis is rare in Denmark; at Copenhagen, Ordrup Mose, 

 Ermelund, Dyrehaven (Stæger, the author). My dates are ^^/s — ^*^/6. 

 It occurs on humid piaces in or at woods. 



Geographical distribution: — Northern and middle Europe down 

 into Austria, Hungary and Styria ; towards the north to middle Sweden. 



36. D. notabilis Zett 



1843. Zett. Dipt. Scand. II, 506, 5, et 1849. VIII, 3076, 5, et 1855, 

 XII, 4622, 5, et 1859. XIII, 5041, 5. — 1903. Kat. palaarkt. Dipt. II, 301. 

 — Bolichopus notatus Stæg. 1842. Krøyer's Tidsskr. IV, 19, 9. — Doli- 

 chopus ptmcticornis Zett. 1843. Dipt. Scand. II, 536, 30. — 1903. Kat. 

 palaarkt. Dipt. II, 303. 



Male. Vertex and frons green or bluish green. Epistoma narrow, 

 yellow or light yellowish. Palpi yellow. Occiput green or æneous, 

 greyish pruinose; postocular bristles yellowish below, black above. 

 Antennæ elongated, a little longer than the head, third joint some- 

 what large, considerably longer than broad, not attenuated but short 

 triangularly pointed with the point somewhat dorsal; the antennæ 

 are black, beneath the basal joint at the apex a very faint, reddish 

 colour may be observed. Thorax somewhat dark green or more 



9* 



