24 PROCEEDINGS OF THE XATIOXAL MUSEUM vol. 66 



Genus SARCOPHAGA Meigen 



SarcopJiaga Meigen, Syst. Besclir., vol. 5, p. 14, 1826. 

 In the following three species the puparia will be described and 

 figured in a forthcoming comprehensive work by Charles T. Greene. 



SARCOPHAGA PLACIDA, new species 

 Fig. b. 



31ale. — Front 0.25 of head width (the same in both specimens) ; 

 parafacials and parafrontals golden yellow pollinose, the former 

 with only a few hairs near the eye; frontals eight, the upper one 

 large and' eclinate, the lowest at the level of the middle of the second 

 antennal joint, hardly diverging toward the eye, about as in com- 

 munis. Antennae black, third joint rather slender, fully twice the 

 second, arista plumose for nearly three-fourths its length; facial 

 ridges black below, the hairs ascending although sparsely to the mid- 

 dle ; palpi black ; bucca one-third the eye height, golden pollinose on 

 anterior half. Beard pale except two orbital rows above, reduced to 

 one at lower curve of eye. 



Thorax gray, with three strongly marked black stripes, the inner 

 reaching the tip of the scutellum, and a narrow, short stripe each side 

 along the supraalars; pleura with a shining black stripe along the 

 suture above sternopleura. No anterior acrostichals; posterior 

 dorsocentrals four, but only the posterior two of any size; sterno- 

 pleurals three; scutellum with two lateral and a subdiscal pair of 

 bristles, and in addition to these a tuft of dense white or yellow 

 hair on the vertical border near the base. 



Abdomen tessellated as usual, toward its tip becoming reddish in 

 ground color; first and second segments without median marginals; 

 third with a large pair, fourth with a row of about eight. Genital 

 segments wholly yellow, narrow and elongate; the first w^th only a 

 few small hairs, the second with moderate black hair and a few small 

 bristles. Forceps black, long and narrow and closely touching each 

 other throughout their length, beyond the middle strongly tapering 

 and becoming larger again near the apices, which are rounded and 

 clavate; on the anterior side the profile is nearly straight. Accessory 

 plate small, yellow, its anterior end bearing a tuft of black short hair. 

 Posterior clasper small, slender, yellow, bearing a long hair near its 

 base; anterior clasper long and flat, yellow, fitting against the penis 

 as if a part of it, the tip truncate. Penis short, mostly black, the 

 terminal segment consisting mostly of three structures: {a) A flat 

 transverse divided posterior plate; (&) two slender black filaments 

 coming up in the middle and recurved; {c) two lateral black rods,, 

 tapering and curving forward, connected on the anterior side witli 

 a transparent membrane which forms a half-cylinder or trough, clos- 



