140 



Syrphidae. 



Length 7 — 7,8 mm. 



This species if of a more olive colour than the preceding, only 

 the female of antiqua is somewhat simiiar in this respect. The species 

 is most simiiar to antiqua, but it is distinguished by the pruinose 

 epistoma, and in the male by the short, yellow pubescence on thorax, 

 the want of black hairs at the basal corners of second abdominal 

 segment, and the pale balteres; in the female it is distinguished by 

 the more densely punctate and haired thorax and abdomen, the hairs 

 on thorax also being more erect, longer anteriorly and more golden. 



C. pubera is not common in Denmark; Lersøen, Ordrup Mose, at 

 Fure Sø and at Roskilde ; on Lolland in Kældskov, Vester Ulslev Mose, 

 and Dødemose west of Nysted; on Funen at Odense. The dates are 

 ^/5 — ^"/g. It occurs on flowers in fens and on humid meadows. 



Geographical distribution: — Northern and middle Europe down 

 to the Alps; towards the north to northern Sweden, and in Finland. 



6. C. scutellata Fall. 



1817. Fall. Dipt. Suec. Syrph. 55,13 (Eristalis). — 1822. Meig. Syst. 

 Beschr. 111, 284, 12, Tab. XXX, Fig. 29—30 {Syrphus) et 1838. VII, 123. 



— 1843. Zett. Dipt. Scand. 11, 808,32 et 1849. VIII, 3173,32 et 1859. XIII, 

 6020, 32 (Eristalis). — 1857. Loew, Verh. zool. bot. Geseli. Wien, VII, 600, 15. 



— 1862. Schin. F. A. I, 280. — 1894. Beck. Nov. Aet. Carol. Leop. Akad. 

 LXII, 368, 31, Fig. 159. — 1901. Verr. Brit. Fl. VIII, 219, 5, figs. 218-220. 



— 1907. Kat. palåarkt. Dipt. III, 38. — Syrphus iirhanus Meig. p.p. 1822. 

 1. c. III, 287, 16. — C. urhana p. p. 1902. Beck. Zeitschr. Hymn. Dipt. Il, 



352, 16. — Syrphus curialis Meig. 1822. 

 ]. c. III, 287, 17. — C. curialis 1902. Beck. 

 1. c. II, 352, 17. — Syrphus anthraciformis 

 Meig. 1822. 1. c. III, 291, 21. — C. anthraci- 

 formis 1902. Beck. 1. c. II, 352, 21. 



Male. Eyes bare. Frons black, shining, 

 with a longitudinal groove; vertex and 

 frons black-haired. Epistoma somewhat 

 hollowed below the antennæ, the central 

 knob large and very broad, reachlng the 

 eye-margins on each side, and lying some- 

 what high; the epistoma distinctly hol- 

 lowed between the central knob and the 

 mouth edge, but this latter and the whole 

 lower part of epistoma somewhat re- 

 tracted, and the drooping lateral angles lying more backwards than 

 usual and thus the lateral margin of the oral aperture short, while 

 the front margin forms a much deeper curve than usual; the epistoma 



Fig. 03. Head of C. scutellafa d- 



