Sarcophaga. 181 



S. clathrata is not rare in Denmark; Amager, Grib Skov, Sven- 

 strup, Korsør; on Langeland at Lolials; on Funen at Veflinge and 

 in Jutland at Skanderborg and Frijsenborg; the dates are in June 

 and July. The species is known as parasitic in egg-cocoons of Epeira 

 corniita, and I also possess specimens bred in tliis way, the imagines 

 emerging on ^"/g — 2^/7 (Kryger, Hoffmeyer); further I have spec- 

 imens bred from pupæ found on the leaf of a Carduus, probably 

 coming from Epeira-eggs^ the imagines came on 7? (Gudmann). 

 The species is somewhat characteristic by its bluish pruinosity. Our 

 specimens have partly the subcostal vein bare, partly with bristles 

 [nigraris Pand.), but generally only one or a couple. 



Geographical distribution: — Northern and middle Europe 

 down into France, and on the Canaries ; towards the north to southern 

 Sweden (Ringdahl), and in Finland. 



8. S. soror Rond. 



1860. Rond. Atti Soc. Ital. Se. Nat. III, 386, 6 et 1862. Dipt. Ital. Prodr. 

 V, 106, 6. — 1896. Pand. Rev. Entom. XV, 203, 57. — 1907. Villen. Ann. Soc. 

 Ent. de Fr. LXXVI, 397. — 1907. Kat. palåarkt. Dipt. III, 491. — 1912. 

 Bottch. Deutsch. Ent. Zeitsclir. 722, Fig. 16. — 1924. Stein, Arch. f. Natur- 

 gesch. 90, 6, 195. — S. vagans p. p. S, Schin. 1862. F. A. I, 569. 



Male. Frons about two thirds as broad as the eye. Orbits broad, 

 nearly as broad as frontal stripe. Orbits and cheeks greyish white; 

 frontal stripe black. Outer vertical bristles present. Bristles on cheeks 

 long and unusually strong, in one row, Jowls black-haired or more 

 or less pale-haired behind. Occiput grey, with 

 black hairs and yellowish hairs below. An- 

 tennæ with third joint about one and a half 

 times as long as second, reaching fully to the 

 end of the eye. Palpi black. Thorax grey 

 pruinose, with broad black stripes and narrow 

 interstices; three postsutural dorsocentrals; 

 a pair of præsutural but no præscutellar 

 acrostichals. Scutellum with crossing apical 

 bristles. Abdomen grey or whitish grey prui- 

 nose, black tessellated; third segment with 

 marginal bristles. Sternites with erect hairs. pj„ 43 ^ soror. 



Fifth sternite without brush. Præhypopygial 



segment black with only very slightly stronger marginal hairs. Hypo- 

 pygium black ; upper f orceps with the arms pointed abruptly, excised 



