214 Tachinidae. 



the spots less distinct. Abdomen black-haired, third segment with 

 longer hairs at margin, fourth and fifth with a dense marginal row 

 of bristles. Legs black; middle femora with a posteroventral apical 

 comb of short, strong spiniiles. Wings a httle tinged, somewhat 

 brownish at base; veins blackish brown; first posterior cell open, 

 ending before apex of wing; apical cross-vein bending outwards 

 above the angle. Squamulæ whitish. Halteres yellow. 



Female. Similar; colour more bright grey and thoracic stripes 

 narrower. Frons as broad as the eye. Sixth abdominal segment with 

 a transverse opening wdth dense marginal bristles. 



Length. About 9 mm. 



A. ruralis seems to be rare in Denmark, I possess only one pair 

 which I took in copula at Hald in Jutland on ^^/^ 1910. 



Geographical distribution: — Eiirope, at all events dow-n into 

 France; towards the north to middle Sweden, and in Finland. 



29. Sarcopliila Rond. 



Medium sized or small species of greyish colour, with black 

 spots on abdomen which are fixed, not shifting. Head a little broader 

 than thorax, convex behind, slightly puffed out below, not much 

 higher than long, Frons broad in both sexes, considerably broader 

 than the eye, a little protruding. Jowls about one third of the height 

 of the eye. In both sexes ooellar, outer and inner vertical and two 

 orbital bristles. Postocellar and occipital bristles distinct. Occiput 

 all black-haired. Frontal bristles reaching a little below insertion of 

 antennæ, the uppermost directed outwards in both sexes; the rows 

 not diverging below. Cheeks with fine hairs. Vibrissæ not ascending. 

 Epistoma not retreating, slightly reflected below. Oral cone and 

 proboscis of medium length. Antennæ inserted a little above middle 

 of the eye, third joint scarcely one and a half times as long as second; 

 arista short-plumose in basal half. Thorax rectangular; three post- 

 sutural dorsocentrals and two præsutural and one pair of præscutellar 

 acrostichals. Two notopleural bristles. Scutellum with three marginal 

 bristles on each side, the apical the strengest. Four sternopleural 

 bristles, the upper median small, often wanting in male. Pteropleura 

 with hairs and a couple of bristles above. Abdomen elongated conical; 

 excavation on second segment reaching hind margin in male, but 

 not in female; only marginal bristles present, none on second and 



