Pipunculus. 23 



but on the grey spots behind the humeri are distinct, longer black 

 hairs; scutellum a little shining, the marginal hairs small. Pleura and 

 postscutelliim grey. Abdomen black, dull, the hind margins of the 

 segments broadly greyish, on the sides there are large, triangular, 

 whitish grey spots, on the first segment nearly meeting in the middle. 

 Abdomen is sparingly and short-haired, on the sides of first segment 

 an inconspicuous tuft of a little longer hairs. Hypopygium blackish 

 above, whitish grey below, with a nearly horizontal small slit. Legs 

 black, dull, only the hind femora shining on the posterior and postero- 

 ventral side; the legs short-haired, femora nearly bare, and only 

 middle femora with just discernible small spinules below the apical 

 part, hind tibiæ with a distinct fringe above. Wings a little brownish 

 tinged, stigma brown, nearly double as long as next costal segment; 

 middle cross-vein at about the first tliird of the discai cell. Halteres 

 black. 



Female. Frons black and somewhat shining above, greyish on 

 the lower half, on the black part an elongated elevation stretching 

 from near the vertical triangle more than half way down. Abdomen 

 with the bands more brownish. Hypopygium large and long, reaching 

 almost to the base of abdomen, the basal part elongated, without 

 furrow, black and shining; it somewhat evenly passes into the thick- 

 ened basal part of the reddish ovipositor, which tapers into a thin, 

 incurved apical part. Wings with the stigma not much longer than 

 next costal segment. 



Length 4,5 mm. 



P. melanostolus is a distinct and beautiful species, it is very rare in 

 Denmark, only three specimens, two males and a female have been 

 taken, on Lolland at Maglemer and in Merrits Skov V? 1873 (Schhck) 

 and at ^V? 1913 (Sønderup). 



Geographical distribution: — Europe down into Italy; it is not 

 known north of Denmark. 



2. P. zonatus Zett. 



1849. Zett. Dipt. Scand. VIII, 3206, 5-6 et 1855. XII, 4683, 5-6. - 

 1862. Schin. F. A. I, 248. - 1869. Thoms. Opusc. Entom. II, 115, 12. - 1897. 

 Beck. Berl. Ent. Zeitschr. XLII, 52, 18, Taf. II, Fig. 9 et 1900. XLV, 223, 

 18 et 1921. Wien. Ent. Zeitg. XXXVIII, 126, 127. - 1901. Veir. Brit. Flies. 

 VIII, 86, 2. - 1902. Girsch. Wien. Ent. Zeitg. XXI, 123. - 1910. Kertész, 

 Cat. Dipt. VII, 385 (Doryglas). — Cephalops pratorum Fall p. p. 1816. Dipt. 

 Suec. Syrph. 15, 1. 



