198 Tachinidae. 



grey pruinose, the median stripe narrower than the lateral and 

 narrower than the interstices ; four or five postsutural dorsocentrals, 

 only the two hinder somewhat strong, the others weak to almost 

 disappearing; a weak pair of præsciitellar acrostichals. Scutellum 

 with Crossing apical bristles. Abdomen grey pruinose, black tessel- 

 lated ; third segment without bristles. Fourth sternite with decumbent 

 hairs. Fifth sternite deeply incised at the base of the lamellæ, these 

 latter then dilated and roundish, without brush, but with strong, 

 dense marginal bristles, especially on basal part. Præhypopygial 

 segment black, grey pruinose, with medium strong marginal bristles. 

 Hypopygium red, densely hairy; upper forceps not long, cleft to 

 near middle; its basal part is arched dorsally, 

 then follows a deep excision at the base of 

 each branch and then the dorsal margin bends 

 forwards so that a triangular apex is formed; 

 the forceps is densely haired on basal part, 

 the arms bare, of brown colour; the lower 

 forceps small, somewhat roundish. Anterior 

 claspers longer than posterior, straight in apical 

 part, not pointed; posterior claspers with 

 hook-like apex. Penis not long, with the end 

 bluntly pointed, not bent forwards; near the 

 end some ventral apophyses and above them 

 Fig. 69. S. falculata. blad-like lobes. Posterior femora densely fringed 

 below; hind tibiæ with long fringes on antero- 

 and posteroventral sides, longest on the latter side; middle tibiæ 

 somewhat fringed distally on posteroventral side; middle femora 

 with comb, but without posteroventral bristles inwards; hind femora 

 with an anteroventral row of bristles in apical two thirds. Wings 

 hyaline; costal segment 3 mucli longer than 5; subcostal vein bare; 

 no costal spine. 



Female. Frons fully as broad as the eye. Præscutellar acrosti- 

 chals developed. Sixth abdominal segment red, a little greyish at 

 hind margin, with a dorsal longitudinal carina and thus roof-shaped; 

 the opening oval, for the most part ventral, with fine marginal 

 bristles above and some stronger intermingled below. This female 

 will be known by the mainly white-haired jowls and white- 

 haired occiput with only one row^ of black hairs behind postocular 

 bristles. 



Length 10 — 12 mm (after Bottcher 7 — 16 mm). 



