SARCOPHAGA AND ALLIES 285 



point arising from the front edge of the plate; still 

 further to the side there is a winglike paler diagonal 

 expansion of the plate, the back edge of which comes 

 in contact with the body of the segment; the apical 

 part of the segment is simple and rounded. 



Legs black ; middle femur with short but distinct 

 comb below ; middle tibia with one bristle on the outer 

 front side; hind tibia not villous, but still bearing on 

 the outer front edge three or four little suberect hairs. 



Wings hyaline, no costal spine; third costal seg- 

 ment longer than fifth; first vein bare; third hairy 

 almost to the crossvein. 



One male, Puerto Barrios, Guatemala, March 

 5, 190o, collected by Professor Hine. 



Length 8.5 mm. 



Holotype. — Male, in collection of Professor Jas. 

 S. Hine. 



No. 137. Sarcophaga assidua Walk. 



Walker, Dipt. Saunders., 328. — U. S. 

 Howard, Proc. Wash. Acad. Sci., ii, 566, figs, and life his- 

 tory ; bred from human excrement. 

 Morgan, Bull. 30, n. ser., Div. Ent., 1901, 25, figs. Bred 

 from Melanoplns differentialis in Mississippi ; deter- 

 mined by Coquillett. 

 Herms, Jour. Exp. Zoology, iv, 45-83. Biology; larvae 



feed on dead fish on the shore of L. Erie. 

 Pratt, Can. Ent., xliv, 181, bred from cow manure. — 



Texas. 

 Johnson, Bull. Amer. Mus. Nat. Hist, xxxii, 75, occurs 



in Fla. 

 Johnson, Annals Ent. Soc. Amer., vi, 447, occurs in Ber- 

 muda. 

 Male. Front .199 of head (average of five,— 

 .190, .196, .198, .202, .208) ; parafrontals and para- 

 facials golden yellow, the same color extending upon 

 the front part of the bucca but not behind the eye; 

 frontal stripe blackish, well defined; frontal bristles 

 divergent moderately, but not abruptly in front, 

 reaching about to the middle of the second antennal 

 joint; ocellar bristles distinct; outer verticals not de- 

 veloped; antennae black, third joint 2^/2 times the 



