180 Syrphidae. 



the base is brown; upper marginal cross-vein curved, the upper angle 

 rectangular. Squamulæ whitish or yellowish white with yellow margin 

 and fringe. Halteres orange, the knob may be a little darkened. 



Feniale. Frons not broad, widening downwards, the middle channel 

 only represented by an impression in front; the frons is yellow-haired, 

 at the ocelli a few black hairs. Antennæ with the third joint a little 

 larger than in the male and more red. Thorax somewhat eoarsely 

 punctate, with short, somewhat depressed, yellow pubescence. Ab- 

 domen broader than in the male with the greatest breadth about at 

 the hind part of third segment; it has short, depressed, black hairs, 

 at the sides long, erect, yellow hairs ; between the erect, pale and the 

 depressed, black hairs are depressed, pale hairs forming slight fasciæ. 

 Legs considerably paler than in the male as all tibiæ are broadly 

 reddish yellow at base, and anterior tibiæ at apex; also hind tibiæ 

 may be reddish at the extreme apex; the base of middle tarsi and 

 of front tarsi below more or less reddish; the legs almost all pale- 

 haired except on middle tibiæ; hind femora black-setulose beneath. 

 Wings with the difference between the basal and the more strongly 

 brown apical half more pronounced than in the male. 



Length 9—9,5 mm, 



C. carhonaria is rare in Denmark, only six speclmens, a male and 

 five females have been caught ; on Funen at Veflinge (H, J. Hansen) 

 and Middelfart (the author), and in Jutland in Greisdal and Højenbæk 

 Dal at Vejle (the author) and at Horsens (O. G. Jensen). The dates 

 are ^/t— ^/s. 



Geographical distribution: — Northern and middle Europe down 

 to the Alps and in northern France; it seemed to have its northern 

 limit in Denmark; to be sure Becker records it from Scandinavia, but 

 this is, I think, on account of a specimen in our collection, determined 

 by Becker, as it is otherwise not known from Sweden; it is there- 

 against recently recorded from Finland, and it occurs in England, but 

 it seems everywhere to be a somewhat rare species. 



26. C. cynocephala Loew. 



1840. Loew, Programm Posen, 32, 7, Fig. 45 et 1840. Isis, 569, Fig. 45. 



— 1862. Schin. F. A. I, 282. - 1894. Beck. Nov. Aet. Leop. Garol. Akad. 

 LXII, 456, 98, Fig. 33—34. — 1901. Verr. Brit. Fl. VIII, 259, 26, fig. 211. 



— 1907. Kat. palaarkt. Dipt. III, 26. — Eristalis coracina Zett. 1843. 

 Dipt. Scand. II, 805, 29 et 1849. VIII, 3173. 29. — Eristalis rostrata Zett. 

 1843. 1. c. II, 805, 30 et 1849. VIII, 3173, 30 et 1855. XII, 4668, 30 et 

 1859. XIII, 6019, 30. — 1894. Beck. 1. c. LXII, 249. 



Male. This species is much like carhonaria. Eyes with somewhat 

 long, blackish hairs. Frons a little more arched, not pruinose, shining. 



