284 Syrphidae. 



not belong to the narrow-bodied form, described by Verrall as 7ngri- 

 cornis with ohscurus Zett. as synonym, and which Verrall thinks him- 

 self is not specifically distinct from lunnlatus. Thus Zetterstedt has 

 no doubt venustus Meig. both as venustus and lunulatus (probably 

 according to the lunules being more or less limulate), while he described 

 lunulatus Meig. as ohscurus; this view seems also confirmed by the 

 expressions by Malm (K. V. och V. Samh. Goteborg. Handl. 1860, 37) 

 who has certainly also venustus Meig. both as venustus and lunulatus. 



— Fallen suggested that S. corollae {olitoria) was perhaps identical 

 with Musca pinastri De G., and Verrall thinks likewise that this may 

 be the case, and is herein followed by the Kat. pal. Dipt., but this is 

 not possible, for the larva and pupa of pinastri De G. are spined, 

 which is not the case with corollae. Such larvæ occur, as far as I 

 know, only in the first group of species in the genus (albostriatus — 

 lunulatus) ; the larva of pinastri is evidently, according to the descrip- 

 tion, somewhat similar to the larvæ of albostriatus and venustus, and 

 according to the figure of the abdomen of the imago (Fig. 7) I think 

 it very probable that De Geer's M. pinastri is S. lunulatus, and I have 

 therefore included it in the synonymy, but with a querry. 



S. lunulatus occurs in the same localities as the preceding species, 

 but it is rare in Denmark, I know only twelve specimens; at Copen- 

 hagen (H. J. Hansen, Stæger), Søllerød (Godskesen), Ermelund, Dyre- 

 haven, Tyvekrog, Tisvilde (the author) ; on Lolland in Kældskov (S. 

 Jørgensen), and in Jutland at Horsens (O. G. Jensen). My dates are 

 16/g — 14/^^ }3^j| j^ jg^ ]j]^g vetmstus, especially found in spring. 



Geographical distribution: — Northern and middle Europe down 

 into France; towards the north to northern Sweden, and in Finland, 

 and it goes still farther towards the north, as it occurs on Iceland 

 and in Greenland. According to Schiner it seems to be especially a 

 mountain species. 



5. S. macularis Zett. 



1843. Zett. Dipt. Scand. 11,730, 32 et 1849. VIII, 3141,32 (Scaeva). 



— 1862. Schin. F. A. I, 302. — 1885. Kow. Wien. ent. Zeitg. IV, 167. 



— 1907. Kat. palåarkt. Dipt. III, 67. 



Of this species I only know the female. Vertex and frons black 

 or greenish black, with two large yellowish grey side dust spots, 

 stretching down the sides; the hairs black. Epistoma has an in- 

 definitely bordered, but rather broad, black middle stripe, so that only 

 the sides are yellowish; it is somewhat pruinose at the sides, but 

 shining; the mouth edge, the lower side parts of epistoma and the 

 jowls black; epistoma yelloAv-haired, but with black hairs down the 



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