422 Syrphidae. 



with the markings smaller than in the male, and they are shining, 

 not partly dull as in arbustorum, and if they are obscure or wanting 

 there are shining spots present. The femora are likewise longer haired 

 than in arhustorum. 



Length 8,5 — 11 mm. 



As seen this species is very similar to arhustorum^ but it is 

 distinguished by two characters, the pubescent arista and the longer 

 hairs on the femora, and also by the quite shining abdominal spots 

 in the female. 



E. lucorum seems to be rare in Denmark, but when better re- 

 cognised it will probably be found more common; Utterslev Mose 

 (the author)^, Hillerød (Godskesen); in Jutland at Silkeborg (Esben 

 Petersen) and at Bovbjerg and Frederikshavn (Th. Mortensen), and 

 one specimen from earlier time without locality; in all ten specimens 

 but among them only one male. My dates are ^^/e — ^^Z?. The pupa 

 was taken in Utterslev Mose on ^/s, it developed later in the month 

 (Schlick). 



Geographical distribution : — From Lapland to Germany. 



Remarks: Of this species Meigen had only the female and the 

 male was hitherto not described. Verrall states that the sole female 

 representative of E. lucorum in Meigen's collection at Paris is pertinax, 

 but according to Lichtwardt (1. c.) Villeneuve has determined a speci- 

 men of the present species, taken by Riedel at Riigenwalde, as 

 lucorum ; this determination seems to me very probably correct, though 

 Villeneuve, according to a communication to me, has not examined 

 Meigen's type. 



5. E. tenax L. 



1758. Linn. Syst. Nat. X, 591 et 1767. XII, 2, 984, 32 et 1761. Fn. 

 Suec. 1799 {Musca). — 1764 O. F. Miill. Fn. Fridrichsd. 716 (Musca). — 

 1775. Fabr. Syst. Entom. 765, 15 (Syrphus) et 1805. Syst. Antl. 238, 24. 



— 1817. Fall. Dipt. Suec. Syrph. 26, 17 {Syrphus). — 1822. Meig. Syst. 

 Beschr. III, 385, 4. - 1843. Zett. Dipt. Scand. II, 661, 7 et 1849. VIII, 

 3113, 7 et 1852. XI, 4301, 7 et 1855. XII. 4651, 7 (Syrphus). — 1862. 

 Schin. F. A. I, 334. — 1901. Verr. Brit. Fl. VIII, 505, 4, figs. 350-352. 



— 1907. Kat. palåarkt. Dipt. III, 101. — E. campestris Meig. 1822. I. c. III, 

 387, 5. — E. hortorum Meig. 1822. 1. c. III, 387, 6 et 1838. VII, 143, 6. 



— E. vulpinus Meig. 1822. 1. c. III, 388, 7. — 1862. Schin. F. A. I, 334. — 

 E. sylvaticiis Meig. 1822. I. c. III, 388, 8. 



Male. Vertex blackish æneous ; frons and epistoma densely yellow 

 pruinose, a triangular space above the antennæ and on epistoma a 

 broad middle line and the lower side parts black, shining; jowls black. 

 Vertex with black, frons with mixed black and yellow hairs and 



I 



