88 Syrphidae. 



most nearly allied to bimaculata, and I am not sure whether it is not 

 a variety of this species. It seems to differ by smaller size, broAvn 

 antennæ with the third joint a little longer, smaller, more roundish 

 abdominal spots and a little more yellowish wings. Verrall thinks it 

 possibly is a variety of noctiluca, but I think it more allied to bimaculata. 

 — I find my specimens quite agreeing with the description given by 

 Meigen. 



P. notata seems to be rare in Denmark, we have only a couple 

 of specimens from earlier time probably taken in the vicinity of 

 Copenhagen, but as remarked some specimens were sent to Zetterstedt. 



Geographical distribution : — Zetterstedt records it from the southern 

 Sweden, and Bonsdorff from Finland; towards the south it is recorded 

 to France bat, of course, the latter records are doubtful. 



6. P. signata Meig. 



1822. Meig. Syst. Beschr. III, 246,8. — 1849. Zelt. Dipt. Scand. VIII. 

 3181, 1—2. — 1862. Schin. F. A. I, 262. — 1901. Verr. Brit. FL VIII, 

 164, 174, 6. — 1907. Kat. palåarkt. Dipt. III, 13. 



Male. Vertex, frons and epistoma black or bluish black, with 

 distinct, greyish pruinosity; the frons has blackish or brownish hairs, 

 vertex and epistoma yellowish white hairs. Occiput black, greyish 

 pruinose, all whitish-haired and the jowls likewise; among the long 

 hairs at the upper eye-margin some blackish are intermingled. Antennæ- 

 not specially short, black, third joint more or less blackish brown or 

 brown, roundish square, slightly longer than broad; arista blackish 

 brown, not so long as the antennæ, thickened in more than the basal 

 half. Eyes densely clothed with somewhat long, brownish hairs. Thorax 

 black, shining, densely punctate; it and pleura densely clothed with 

 somewhat long, yellowish pubescence, longest on scutellum, only just 

 at the margin and above on pleura some dark hairs. Abdomen black, 

 shining, somewhat coarsely punctate; on second segment a pair of 

 narrow, somewhat linear, reddish yellow spots; they are placed a 

 little obliquely with the outer end nearest the hind margin. Abdomen 

 clothed with short, yellowish hairs, broadly black at the incisures; at 

 the base the hairs are longer. Venter translucent, with long, pale 

 hairs. Genitalia with brown hairs. Legs black, anterior knees distinctly 

 yellow, hind knees only slightly; tarsi blackish or brownish black, 

 with the two basal joints paler. Hind femora somewhat, hind meta- 

 tarsi very slightly, almost not, thickened. Legs haired as usual, the 

 hairs mainly yellowish, but dark behind front femora and at the tip 

 of posterior femora; hind tibiæ with a conspicuous dark fringe above. 

 Wings hyaline or slightly yellowish tinged; stigma yellow or brown. 





