62 Tachinidae. 



— Antennal arista bare; frons equal or about in male 

 and female and both sexes with orbital bristles; two 

 sternopleural bristles {MUtogrammini) 7. 



2. Arista generally long-plumose. Hind coxæ hairy 

 behind. Two large and one or two small notopleural 

 bristles; postalar declivity with more or fewer hairs; 

 middle tibiæ with a ventral bristle (except in male of 

 S. striata) ; scutellum in male without or with small, 

 in female without apical bristles; lower forceps small, 

 not elongated; abdomen tessellate with generally 



shifting spots 3. 



— Arista more or less short-plumose (in Brachycoma 

 pubescent). Hind coxæ not hairy behind. Only two 

 notopleural bristles; postalar declivity bare; middle 

 tibiæ in male without ventral bristle (except in 

 Sarcophila). Scutellum in both sexes with apical 

 bristles as strong as the others; lower forceps with 

 arms elongated, as long as upper forceps; abdomen 



with rather fixed spots 4. 



3. Præsutural intraalar bristle generally wanting; 

 posterior femora in male generally more or less 

 fringed below. Upper forceps not cleft to base; 



female without ovipositor 25. Sarcophaga. 



■ — Præsutural intraalar bristle generally present; 

 posterior femora in male not fringed. Upper forceps 

 cleft to base; female generally with ovipositor.... 26. Blaesoxypha. 



4. Arista plumose 5. 



— Arista not plumose 30. Brachycoma. 



5. Middle tibiæ in male without ventral bristle; frons 



in male narrow, without orbitals 6. 



— Middle tibiæ in male with ventral bristle ; frons broad, 

 equally broad and with orbitals in both sexes; four 

 sternopleural bristles in female (generally) 29. Sarcophila. 



6. Palpi black; generally three sternopleural bristles; 



wings without costal spine 27. Agria. 



— Palpi yellow; generally four sternopleural bristles; 



wings with a costal spine 28. Angiometopa. 



7. No large vibrissa on angle 31. Miltogramma. 



■ — A large vibrissa on angle present 8. 



8. Frons very jDrotruding; cheeks with a row of strong 



bristles 32. Metopia. 



— Cheeks without bristles 9. 



9. Cheeks finely hairy; vibrissæ not ascending; abdo- 

 men with distinct bristles 10. 



— Cheeks bare, at all events below, if more hairy ab- 

 domen without distinct bristles; vibrissæ somewhat 



or quite ascending 13. 



10. Wings with a costal spine 11. 



