296 THOMAS SAY FOUNDATION 



there is a small but distinct black hook underneath 

 each of them. 



Legs black; middle femur with a very distinct 

 comb behind; middle tibia with two bristles on the 

 outer front side ; hind tibia not ^-illous. 



Wing hyaline ; a small costal spine present ; third 

 costal segment as long as the fifth and sixth together ; 

 first posterior cell ending quite far before the tip of 

 the wing. First and third veins each with a row of 

 hairs. 



Female. Front .347 of head (average of three, 

 — .320, .336, .384) ; orbitals and outer verticals 

 strong; the patch of yellowish hairs on the edge of 

 the scutellum at each side is as distinct as in the males, 

 affording an excellent character for distinguishing 

 this female. 



Fourth abdominal segment almost entirely red, 

 its posterior edge closing together in all three of the 

 specimens so that the genital segments are entirely 

 concealed. Middle femur without comb ; middle tibia 

 with two stout bristles on outer front side. 



Length 7-11 mm. 



Four males and three females, from Uvalde, Vic- 

 toria and Catula, Texas (Bishopp Nos. 2489, 3489, 

 3546 and 4121). Regarding the larval habits, Mr. 

 Bishopp writes, "A number of lots bred from car- 

 casses of animals and exposed beef at Uvalde, Texas, 

 by D. C. Parman." 



Holotype and allotype. Male and female, No. 

 20574, U. S. N. M., from Uvalde, Texas. 



No. 143. Sarcophaga quadrisetosa Coq. 



Coquillett, Ent. News, xii, 17 (Helicobia). — Md., Va., 

 D. C. 



Howard, Proc. Wash. Acad. Sci., ii, 568, note on habits, 

 — breeds in human excrement ; Canad. Ent., xxxiii, 

 44, oc. in Va., breeding in cow manure (id.). 



Baker, Inv. Pacif., .1, oc. Ormsby Co., Nev., and at Stan- 

 ford Univ., Cal. (id.). 



Pratt, Canad. Ent., xHv, 181 (id.). Dallas and Victoria, 

 Texas, very common, breeding in cow manure. 



Greene, Ent. News, xxii, 384 (id.), oc. Wenonah, N. J. 



