SARCOPIIAGA AND ALIJES 191 



short, rather U-shaped, the terminal parts of the U 

 with short spines directed toward the center. 



Legs black, middle femur with short spines near 

 the tip, which could hardly be called a comb; middle 

 tibia on front side with one or two bristles ; hind tibia 

 with long villosity, spreading both ways. 



Wings hyaline, no costal spines; third segment 

 of costa as long as fifth and sixth together; first vein 

 bare; third hairy about half way to the crossvein. 



Female. Front .326 of head (average of five,^ 

 .310, .317, .333, .333, .339) ; outer verticals and orbit- 

 als distinct; genital segment deep red with rather 

 round opening, having a notch above. 



Length 10-14 mm. 



3Iany specimens of both sexes from Massachu- 

 setts to California; a common scavenger. Parker re- 

 ports it breeding in human excrement, and I found 

 specimens with the same habit noted in the collection 

 of the State Laboratory of Xatural Ilistorj^ of Illi- 

 nois. 



]Mr. John B. Gill, of the Bureau of Entomology, 

 Monticello, Fla., sent specimens for identification, 

 accompanied by the following note, which I am per- 

 mitted to publish; 



"Passed a number of rather large dipterous larvae 

 with my stool on the morning of June 21, 1916, after 

 taking a strong dose of "Pluto" water. Some feces 

 containing a few larvae caged for the purpose of rear- 

 ing adults. June 24th, all larvae have left the excre- 

 ment and entered the sand for pupation. Found five 

 pupae and two larvae buried in the sand in depths 

 varying from 2 to 4 inches. July 3d, six adults (Sar- 

 cophagids) emerged. July 4-16, two adults emerged. 

 All specimens pinned. Quaintance No. 10590." 



Mr. Gill also stated in his letter that the larvae 

 had attained full growth within his alimentary canal. 



Prof. Leonard ITaseman, of tlie University of 

 Missouri, sent adults of this species for identification, 

 which had, as in the case just recorded, been passed 

 from the human alimentary canal. lie received them 

 from Dr. A. L. Lewis, Sumner, Mo., who at Profes- 



