Pipizella. 61 



2. P. flavitarsis Meig. 



1822. Meig. Syst. Beschr. 111, 248, 14 (Pipiza). — 1843. Zett. Dipt. 

 Scand. II. 832, 8 et 1849. VIII, 3183, 8 et 1859. XIII, 6027, 8 (Fipiza). 

 — 1862. Schin. F. A. 1, 263 (Pipiza). — 1901. Verr. Brit. Fl. VIII, 157,3. 

 — 1907. Kat. palåarkt. Dipt. III, 6. — Pipiza campestris var. /9. Fall. 1817. 

 Dipt. Suec. Syrph. 60. — Pipiza vitrea Meig. 1822. Syst. Beschr. III, 

 249, 15. — 1843. Zett. Dipt. Scand. Il, 832, 9 et 1849. VIII, 3183, 9 et 

 1859. XIII, 6027, 9. — Pijnza melancholica Meig. 1822. I. c. III, 251, 20, 

 Tab. XXIX, Fig. 12. — Pipiza Ratzehurgii Zett. 1843. 1. c. II, 843, 23 et 

 1849. VIII, 3186, 23 et 1859. XIII, 6032, 23. 



Male. Vertex, frons and epistoma bluish, black-haired ; vertex 

 with some yellow hairs. Eye-suture rather long, as long as or nearly 

 as long as the vertical triangle, though varying. Occiput bluish black, 

 somewhat greyish pruinose, especially downwards; the postocular hairs 

 black above, white in the lower half, but the jowls black-haired. Eyes 

 densely blackish brown-hairy. Antennæ black, not so long as epistoma, 

 third joint twice or scarcely twice as long as broad; arista about as 

 long as the antennæ, thickened in the basal half, brown at the base. 

 Thorax bluish black, finely punctate; it is clothed with longish hairs, 

 long on scutellum, especially at the margin; the hairs are pale on the 

 disc, but dark at the side margins and at the margin of scutellum. 

 Pleura with long, black hairs. Abdomen æneous black, second seg- 

 ment coarsely punctate, the others less coarsely punctate, and shining. 

 Abdomen clothed with short hairs, a little longer at the margin, and 

 especially at the basal corners. The hairs are black except on the 

 side parts of third and fourth segments. Venter black, shining, with 

 somewhat long hairs, longest and pale on the second segment, for 

 the rest black. Legs black, shining, anterior knees and the two first 

 joints of the anterior tarsi yellow; hind knees very narrowly reddish, 

 second joint of hind tarsi yellow ; hind metatarsus somewhat thickened. 

 Legs haired in the usual way with black hairs, but the long hairs on 

 the front side of hind femora white, except at the apex; the fringe 

 above the hind tibiæ conspicuous; the adpressed pubescence on tibiæ 

 and partly on hind metatarsi dark. Wings a little brownish tinged; 

 stigma yellowish brown ; the upper marginal cross-vein with a rect- 

 angular bend in the middle, the upper part not or slightly curved; 

 the mediastinal vein ending just after the middle cross-vein. Squamulæ 

 dirtily whitish or smoky, with darker margin. Balteres yellow. 



Female. Frons very slightly punctate, bluish, brightly shining, 

 with a small groove above the antennæ, but without transverse depres- 

 sion; it is white-haired, but with a cross-band of black hairs above. 

 Vertex, epistoma and occiput white-haired, the postocular hairs longer 

 and more conspicuous than in the male; eyes shorter-haired, but the 



