194 



Tachinidae. 



Occiput grey, black-haired, witli yellowish hairs centrally and below. 

 Antennæ with third joint about twice as long as second, reaching 

 well below the end of the eye. Palpi black. Thorax grey, or yellowish 

 or bluish grey pruinose, the black stripes as broad as the interstices; 

 four postsiitural dorsocentrals, the anterior, especially the second 

 weak (sometimes three or five); a pair of præscutellar acrostichals. 

 Scutellum with apical bristles. Abdomen grey and blackish tessel- 

 lated, somewhat regularly; third segment with a pair of marginal 

 bristles (rarely wanting). Fourth sternite with short decumbent 

 hairs. Fifth sternite cleft to base into long narrow lamellæ, without 

 briish but with long hairs at the margins, Præhypopygial segment 

 black, with bristles at the margin, interrupted in the middle and here 

 Crossing. Hypopygiiim black; upper forceps carinate along middle, 

 cleft in about apical sixth, in profile with about parallel margins, 

 slightly curved ventrally; the dorsal margin bending forwards apic- 



ally, the ventral with a little incision before 

 apex. Anterior claspers long, curved, com- 

 pressed and dilated apically, with the end 

 truncate, a little excised; posterior claspers 

 much shorter. Penis with the end bent 

 rectangularly forwards, somewhat long, the 

 upper lobe large and broad, chitinised, the 

 lower small, free at end. Middle femora 

 long-fringed, hind femora shorter fringed; 

 middle tibiæ often more or less fringed on 

 posteroventral side, hind tibiæ generally 

 densely and long-fringed antero- and postero- 

 ventrally or on the whole ventral side; 

 middle femora with a comb but no postero- 

 ventral bristles inwards; hind femora with 

 an anteroventral row of long bristles. Wings a little tinged; costal 

 segment 3 longer than 5; subcostal vein bare; a quite small or no 

 costal spine. Squamulæ white. H alteres brown. 



Female. Frons broader than the eye. Sixth abdominal segment 

 with a broad vertical split, bending in on venter and not visible from 

 above, with somewhat dense marginal bristles; the segment often 

 more or less reddish at margin. 

 Length 6 — 17 mm. 



S. carnaria is the most common species in Denmark as elsewhere, 

 and present all over the country; the dates are ^^j^ — ^/q. It is often 



Fig. 56. S. carnaria. 



