434 Syrphidae. 



Ermelund, Dyrehaven, at P'ure Sø and Farum Sø, Donse, Frerslev 

 Hegn, Tyvekrog, Tisvilde; on Lolland in Kældskov; in Jutland at 

 Aarhus and Lønstrup, and on Bornholm. My dates are Vs — ^^/lo. It 

 occurs in fens, on meadows and in woods, especially near water, and 

 it is found on various flowers, especially on Umbelliferæ. 



Geographical distribution : — Europe down into Italy ; towards the 

 north to middle Sweden, and in Finland, 



IL E. nemorum L. 



1758. Linn. Syst. Nat. X, 591 et 1767. XII, 2, 984, 30 et 176L Fn. 

 Suec. 1797 (Musca). — 1764. O. F. Mull. Fn. Fridrichsd. 714 (Musca). — 

 1775. Fabr. Syst. Entom. 764, 10 {Syrphns) et 1805. Syst. Antl. 234, 10. — 

 1822. Meig. Syst. Beschr. III, 394, 16. — 1843. Zett. Dipt. Scand. II, 658, 4 

 (Stjrphus). ~ 1862. Schin. F. A. I, 336. — 1901. Verr. Brit. Fl. VIII, 

 514, 8. — 1907. Kat. palåarkt. Dipt. III, 105. — E. sylvarmn Meig. 1838. 

 1. c. VII, 144, 24. — 1862. Schin. F. A. I, 337. 



Male. Vertex blackish, pruinose, frons yellovvish brown pruinose, 

 a little shining above the antennæ; epistoma yellowish pruinose with 

 a black, shining middle stripe, not reaching the antennæ, widening 

 downwards, the mouth edge and the lower lateral parts black; jowls 

 black. Vertex black-haired, quite posteriorly yellow-haired ; frons and 

 epistoma with yellow hairs; the epistoma slightly hollowed between 

 the antennæ and the central knob, below it a little retreating and it 

 is somewhat descending. Occiput whitish grey pruinose along the eye- 

 margin to above the middle and then a little brownish pruinose; the 

 hairs whitish below, yellow above and here some few, black hairs. 

 Eyes yellowish- or brownish-hairy. Antennæ blackish brown, third 

 joint often brown, roundish square, the upper front corner rounded; 

 arista brown, plumose on the basal half. Thorax blackish brown, 

 duU or slightly shining in front of scutellum; it is very indistinctly 

 paler pruinose on the front half with traces of the usual two stripes 

 and roundish lateral spots; it is clothed with yellow or reddish yellow 

 hairs. Scutellum yellow or brownish with similar hairs as on thorax. 

 Pleura with long, yellow or pale yellow hairs. Abdomen black, second 

 segment dull, third shining except front and hind margins, fourth quite 

 shining or with indistinct dull margins; on the second segment are 

 two inwardly triangular, yellow side spots, and the segments have 

 narrow, yellow hind margins, broadest on second segment; sometimes 

 the third segm'ent has exceedingly narrow basal corner spots; the ab- 

 dominal spots are mainly shining, though dull on the front part. 

 Abdomen is clothed with yellow hairs, paler just at the base ; on the 

 hind margins or hind parts of the segments are black hairs to a 



