FAMILY METOPIID.i: THP: FLESH FLIES 400 



45. Abdomen largely pollinose 46 



Abdomen shining black Phrissopodia Macquart 



46. Hairs on sides of the scutellum extending to the lower 'edge 47 



Scutellum without hairs outside the marginals Camptops Aldrich 



47. Middle of propleura bare 49 



Middle of propleura haired 48 



48. Frontal bristles not extending below the base of the antenna. 



Harpagopyga Aldrich 

 Frontal bristles extending below the base of the antennae and iliverging 

 below Notochaeta Aldrich 



49. Parafacial hairs inconspicuous; large species Sthenopyga Aldrich 



Parafacial hairs evident; small species 58 



50. First vein not setose 51 



First vein setose (3) ^Helicobia Coquillett 



51. Propleura haired on median portion 52 



Propleura bare 53 



52. Third antennal segment but little longer than the second; arista short 



plumose; both sexes with orbitals Harbeckia Aldrich 



Third antennal segment usually twice as long as the secontl; males 

 without orbitals (Boettcheria Parker) (25) fSarcophaga Meigen 



53. Sternopleurals arranged in a nearly equilateral triangle 54 



Sternopleurals not arranged in a nearly equilateral triangle 55 



54. Costal spine long and strong Hypopelta Aldrich 



No costal spine Agria Desvoidy 



55. Third antennal segment more than twice as long as the second; cheeks 



less than half as wide as eye-height; parafacials rarely with more 



than two rows of hairs 56 



Third antennal segment less than twice as long as the second; cheeks 

 more than half as wide as eye-height; parafacials with several irregu- 

 lar rows of hairs Emblamasoma Aldrich 



56. Arista with several rows of hairs dorsally and a single row of shorter 



hairs ventrally; vibrissse situated far above the oral margin (26). 



Raviniopsis Townsend 

 Arista normally plumose 57 



57. Front of male with one or two orbitals; at most a single hair on the 



notopleura in addition to the two bristles; fourth vein ending rather 



near the apex of the wing 58 



Front of male without orbitals; always more than a single hair on the 

 notopleura in addition to the two bristles or the sternopleurals are 

 all strong and the fourth vein ends far before the apex of the wing 

 (25) Sarcophaga Meigen 



58. Parafacials with two or three rows of hairs; metacephalon swollen. 



Sarothromyia Brauer & Bergenstamm 

 Parafacials with a single row of hairs; metacephalon not conspicuously 

 swollen Sarcophagula Wulp 



* If there are orbitals in the male see Sarcofihagrula. 



t In some species the males have the luopleura haired while the females do not. 



