Pipizella. 59 



annulata Macq. 1827. Soc. Se. Lille, 1827, 181, 15. — 1838. Meig. 1. c. 

 VII, 120, 38. — 1843. Zett. Dipt. Scand. II, 842, 22 et 1849. VIII, 3186, 

 22. — Pipizella annulata 1862. Schin. F. A. I, 260. — Pipiza obscuri- 

 pennis Meig. 1838. 1. c. VII, 119, 36. — 1862. Schin. F. A. I, 265. 



Male. Vertex and frons æneous or bluish black, yellow-haired, 

 just above the antennæ some black hairs. Epistorna somewhat bluish 

 black, slightly pruinose, white-haired. Occiput æneous or bluish black, 

 yellowish-haired, at the top the hairs long. Antennæ black or blackish, 

 not so long as epistorna, third joint about twice as long as broad, 

 but somewhat varying in length ; arista shorter than the antennæ, 

 thickened in the basal two thirds. Eyes brownish-hairy, the hairs not 

 specially long; the suture between the eyes rather short, distlnctly 



Fig. 12. Antenna of P. virens d, from the outside. x 80. 



shorter than the vertical triangle. Thorax æneous, densely punctate 

 and densely clothed vvith longish, yellow hairs; scutellum more coarsely 

 punctate, with the hairs at the margin longer. Pleura likewise yellow- 

 haired. Abdomen æneous, densely and coarsely punctate, slightly 

 shining, most towards the apex; it is clothed with short, yellow or 

 reddish-yellow hairs, longer at the margin and longest at the basal 

 corners of second segment; at the second and third incisures the hairs 

 are black, and the blackish-haired spaces sometimes somewhat ex- 

 tended. Venter black, shining, with long, pale hairs, the fourth seg- 

 ment with short hairs. Legs black or æneous black, the knees more 

 or less broadly reddish or yellowish; the tarsi sometimes almost quite 

 black, but generally the middle metatarsus more or less yellow, often 

 quite yellow; front tarsi generally black but the metatarsus may be 

 more or less to quite yellowish; also the second joint of the hind 

 tarsi may sometimes be a little yellowish. Hind metatarsi a little 

 thickened. The legs have yellowish hairs, only at the end of the 

 anterior femora some black hairs ; the hairs are long on the posterior 

 side of the anterior femora and on the front side of the hind femora; 

 the tibiæ have somewhat short hairs, longer above the hind tibiæ; 



