196 



Tachinidae. 



19. S. haemorrhoidalis (Fall.) Meig. 



1826. Meig. Syst. Beschr. V, 28, 22. — 1862. Schin. F. A. I, 571, p. p. — 

 1907. Kat. palåarkt. Dipt. III, 483, p. p. — 1911. Kram. Abhandl. Nat. Geseli. 

 Gorlitz, 27, 34, Tab. II, Fig. 15. — 1913. Bottch. Deutsch. Ent. Zeitschr. 10, 

 Fig. 37. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 199. — S. cruentata Meig. 

 1826. 1. c. V, 28, 23. ^ 1900. Villen. Bull. Soc. Ent. de Fr. 364, 19 et 403, 18. 

 — S. nurus Rond. p. p. 1860. Atti Soc. Ital. Se. Nat. III, 392, 30 et 1862. 

 Dipt. Ital. Prodr. V, 124, 31. — 1896. Pand. Rev. Eentom. XV, 185, 19. — 

 1907. Villen. Ann. Soc. Ent. de Fr. LXXVI, 395. 



Male. Frons half as broad as the eye or still more. Orbits and 

 face a little brownish white, jowls more greyish; frontal stripe black. 

 No outer vertical bristles. Bristles on cheeks not strong, but some- 

 what long. The large vibrissa a little above the lower margin of 

 epistoma, the vibrissæ ascending to two thirds of the height, but very 

 small. Jowls black-haired, but with pale hairs behind. Occiput 

 brownish grev, whitish-haired with almost only one row of black 

 hairs behind postocular bristles. Antennæ with third joint twice as 

 long as second, reaching below the lower end of the eye. Palpi black. 

 Thorax greyish or a little yellowish grey pruinose, the median stripe 

 a little narrower than the lateral and narrower than the interstices; 

 four, sometimes five postsutural dorsocentrals, only the two hinder 

 strong, the others weak or very weak; no acrostichals. Scutellum 

 with crossing apical bristles. Abdomen grey or 

 brownish grey pruinose, with black or blackish 

 brown tessellations; third segment without brist- 

 les. Fourth sternite with decumbent hairs. Fifth 

 sternite without brush, with short marginal 

 bristles, especially dense and crowded at the 

 apex of the lamellæ. Præhypopygial segment 

 black with the anterior part brownish red, for 

 the rest greyish brown pruinose, with strong 

 marginal bristles. Hypopygium red with moder- 

 ately dense hairs; upper forceps broadly cleft 

 to near base, the arms slender and somewhat 

 S-like curved ; at the base each arm has a longi- 

 tudinal depression, separating ofT an inner or 

 dorsal sharp margin and this margin has a triangular incision in 

 the middle so that two teeth are formed ; lower forceps a quite small, 

 rounded, red protuberance. Anterior claspers a little longer than 

 posterior, both with curved, hook-like apex. Penis with the forwards 

 curved end not long, above it long, hook-like apophyses; no distinct 



Fig. 58. 

 S. haemorrhoidalis. 



