SAKCOPHAGA AND ALLIES 227 



scutellum; genital segment yellow, with vertical slit 

 bearing heavy bristles above ; row of bristles on fourth 

 abdominal segment interrupted in the middle ; middle 

 femur without comb ; hind tibite not villous. 



Length 10 to 14 mm. 



Six males and six females: Four males and six 

 females, including a paratype of each, from Laurel, 

 Mont. (Parker) ; one male in the Hough collection 

 from Pullman, Wash. (R. W. Doane), and another 

 from Colorado (Experiment Station 2044). 



Mr. Parker reports rearing the species in num- 

 bers from decaying fish ; he also found the adults "in 

 privies and common around garbage, especially if the 

 latter contained fish." 



Type. — Male, in Massacliusetts Agricultural 

 College. 



Paratypes — In U. S. N. M., deposited by Mr. 

 Parker. 



No. 108. Sarcophag-a tuberosa var. 

 sarracenioides n. var. 



Howard, Insect Book, 1902, 165, fig. ; Proc. Wash. Acad. 

 Sci., ii, 565, fig., bred from human excrement {sarra- 

 ceniae Riley). 



Morgan, Bull. 30, n. ser., Div. Entom., 1901, 25, figs, larva 

 and adult (id.). — Miss.; bred from Mclanoplus dif- 

 fer entiaUs. 



Williston, Manual, 1908, 348, fig. (id.). 



Herms, Jour. Exper. ZooL, iv, 45-83, biol., breeds in dead 

 fish on the shore of Lake Erie (id.). 



Banks, Tech. Bull. 22, Bur. Ent., 17, larva desc, but iden- 

 tity somewhat doubtful (id.). 



Kelly, Jour. Agric. Research, ii, 441, bred from grasshop- 

 pers at Wellington, Kans., and Washington, E). 

 C. (id.). 



Aldrich, Jour. Econ. Ent., viii, 242, notes (id.) 



]Male. Front wide, .230 of head (average of 

 five,— .223, .223, .228, .238, .238) ; front of head and 

 the posterior orbits light yellow pollinose, the facialia 

 however blackish below; frontals about 10, suddenly 

 diverging below and reaching fully to middle of sec- 

 ond antennal joint; ocellars small but distinct; para- 



