Pipiza. 85 



finally on Bornholm in Almindingen. My dates are ^",'5 — ^^/s. It 

 occurs in woods and in fieids in low herbage ; the males seem to be 

 somewhat rare. 



Geographical distribution: — Europe ; towards the north to northern 

 Scandinavia, and in Finland; if the synonyms usually placed under 

 this species are correct it goes down into Italy, 



4. P. bimaculata Meig. 



1822. Meig. Syst. Beschr. III, 246,9. — 1849. Zett. Dipt. Scand. VIII, 

 3182, 6—7. — 1862. Schin. F. A. I, 263. — 1901. Verr. Brit. Fl. VIII, 

 163, 172, 5, fig. 190. — 1907. Kat. palåarkt. Dipt. III, 8. — P. geniculata 

 Meig. 1822. 1. c. III, 245,7. — 1849. Zett. 1. c. VIII, 3180, 1—2 et 1859. 

 XIII, 6026, 1—2. — 1862. Schin. F. A. I, 262. — P. guttata Meig. 1822. 

 1. c. III, 247, 12. — 1843. Zett. I. c. II, 830, 5. — 1862. Schin. F. A. I, 

 263. — P. chalyheata Meig. 1822. 1. c. III, 252,22. — 1862. Schin. F. A. 

 I, 264. 



Male. Vertex, frons and epistoma black or bluish black, some- 

 what greyish pruinose, all black-haired or the vertex more or less, 

 sometimes almost quite dark yellow-haired, Occiput bluish black, 

 above with black, downwards and on the jovi^ls with yellovvish white 

 hairs; the long hairs behind the vertex yellow. Antennæ short, black, 

 third joint short, roundly square, not longer than broad ; arista shorter 

 than the antennæ, thickened in the basal half. Eyes densely and 

 somewhat long-haired with blackish or brown hairs. Thorax black or 

 bluish black, somewhat punctate, shining; it is densely clothed with 

 somewhat long, yellowish or greyish hairs (when seen from the side) ; 

 the hairs are longest on scutellum, especially at the margin; at the 

 sides and on pleura the hairs are blackish, downwards again greyish. 

 Abdomen black or bluish black, coarsely punctate, shining, especially 

 towards the end; on second segment there are a pair of somewhat 

 small, narrow, transverse, yellow spots, broadly separated in the niiddle; 

 they may sometimes be wanting {chalyheata Meig.). Abdomen is 

 clothed with short, black hairs, longer at the margin and on the disc 

 of second segment; the pubescence may be all black, but sometimes 

 the long hairs on second segment are more or less pale, and also the 

 short hairs on the side elevations of third and fourth segments may 

 be whitish. Venter translucent, darker towards the end, shining, with 

 long, pale hairs. Legs black, anterior knees rather narrowly yellovvish 

 or reddish, the colour going a little down the base of the tibiæ; the 

 hind knees very indistinclly paler; tarsi rather dark, quite blackish or 

 sometimes the two first joints of the anterior tarsi paler, brown or 

 dark yellowish. Hind femora somewhat but not much thickened, and 



