Chilosia. 



143 



Two of the specimens in our collection have been bred from pupæ, 

 but no particulars are given; the pupa is dirty brown with two yel- 

 lowish, about 0,5 mm long thoracai spiracular tubes; the posterior end 

 is rounded, slightly conically pointed and terminating in a short, 

 cylindrical, yellovv spiracular process. The length of the pupa is about 

 7 mm. The species is earlier recorded as bred from fungi. 



This species seems to vary somewhat in the colour of the thoracai 

 pubescence; Zetterstedt says: "nigro-pilosa, pilositate certo situ fusca", 

 and Verrall says: "blackish or obscurely brownish", while Meigen has: 

 "rostgelbhaarig" ; the Danish specimens have all the thoracai pubes- 

 cence yellow with more or fewer black hairs at the ends and sides. 



C. scutellata is common in Denmark; Hellerup, Ordrup Mose, Dyre- 

 haven, Donse, Hillerød, Frerslev Hegn, Grib Skov, Tisvilde, Espergærde, 

 Nordskoven at Jægerspris, Faxe Ladeplads; on Lolland in Dødemose 

 west of Nysted; on Langeland at Lohals; in Jutland in Greisdal and 

 Højenbæk Dal at Vejle and at Sæby, and on Bornholm in Almindingen. 

 It is no spring species, my dates are ^Ve — ^^/s. It occurs on flowers 

 on meadows. 



Geographical distribution : — All Europe, towards the north to 

 northern Sweden, in Finland and also in Sibiria ; further in Asia minor 

 and Syria. 



7. C. soror Zett. 



1843. Zett. Dipt. Scand. II, 809, 33 {Eristalis). — 1857. Loew, Verh. 

 zool. bot. Geseli. Wien, VII, 559, 14. — 1862. Schin. F. A. I, 279. — 

 1894. Beck. Nov. Aet. Leop. Garol. Akad. LXII, 

 369, 32, Fig. 160. — 1901. Verr. Brit. Fl. VIII, 

 221, 6, fig. 221. — 1907. Kat. palåarkt. Dipt. 

 III, 38. — Syrphus weans Meig. (nec F.) 1822. 

 Syst. Beschr.' III, 285, 13. — C. means 1894. 

 Beck. 1. c. LXII, 240 et 1902. Zeitschr. Hymn. 

 Dipt. II, 351, 13. — ? Syrphus fidvicornis Meig. 

 1822. ]. c. III, 288, 18.'— C. fulvicornis 1862. 

 Schin. F. A. I, 288. — 1902. Beck. Zeitschr. 

 Hymn. Dipt. II, 352, 18. 



Male. This species is much like scutel- 

 lata ; the frons and upper part of epistoma 

 a little broader; epistoma and oral aperture 

 of the same shape, likewise somewhat re- 

 tracted below ; central knob not fully so 

 broad, more conically pointed, and epistoma 

 more pruinose; eye-margins, though narrow, however, broader, and 

 longer-haired. Antennæ with the third joint a little larger and orange ; 



Fig. 68. Head of C. soror d". 



