LVI. FAMILY SARCOPHAGID^, 



Fig. 142. Sarcophaga saracenia, enlarged. After Washburn. 



Usually thick-set, moderately large to rather small 

 flies. Front in both sexes broad, though usually some- 

 what narrower in the male. Arista of the antennae plu- 

 mose to the middle or a little beyond, the distal portion 

 bare; this last character alone is the ultimate distinctive 

 one of the group. Abdomen composed of four visible 

 segments, with the macrochaetse usually confined to the 

 distal portion, though sometimes occurring on the mar- 

 gin of the second and following segments and very rarely 

 on the disk; male hypogygium often prominent. First 

 posterior cell of the wings always much narrowed or 

 closed. 



348 



