sakcophaga and allies 113 



Group D. 

 Three postsutiiral dorsocentrals ; hind tihia not 

 villous; at least the second segment of the hypopy- 

 gium red. 



Table of Species. — Males. 



1. First vein hairy 25. 

 First vein bare 2. 



2. Palpi yellow 3. 

 Palpi black 7. 



3. At least the hind knees and tibia? red ; outer ver- 



tical present; 2 stpl (West Indies). 



No. 19. Harpagopyga diversipes Coq. 

 Legs black; outer vertical absent in male 4. 



4. First segment of hypopygium with a row of 



stout bristles near the base, not the apex; 

 usually four stpl (Mass.) 



No. 20. Thelodiscus indivisus n. sp. 

 First segment with row at apex, often indis- 

 tinct 5. 



5. Large species (12mm.), very robust; penis 



with a hook behind near tip (Georgia) 



No. 47. magna n. sp. 

 Small species ; penis not with hook 6. 



6. Forceps with a pair of processes on the basal 



attached part which bear a striking tuft of 

 long, straight black hair (concealed in re- 

 pose) (widespread, Group C) 



No. 41. hunteri Hgh. 

 Forceps not with such processes or tufts (wide- 

 spread) No. 48. opifera Coq. 



7. Arista long and thin, short-plumose; hypopy- 



gium large, second segment red, with long, 

 upcurved ])ristles (widespread) 



No. 13. HypopcJta scrofa n. sp. 

 Arista as usual 8. 



8. First segment of hypopygium black; forceps 



wholly yellow (tropical and su})tropical. 



Group H). No. 127, sternodontis Tn^. 



Both segments yellow 9. 



