SARCOPHAGA AND ALLIES 125 



Holotvpe.— ]Male, Xo. 20512, U. S. X. M., from 

 Trenton, X. J. 



No. 51. Sarcophaga rudis n. sp. 



]Male. Front .199 of head (average of three,— 

 .193, .197, .207), widening rapidly below the middle, 

 so that the parafacials are wider and the bucca higher 

 than usual; the parafrontal is yellowish pollinose, the 

 yellow increases in intensity below, so that the para- 

 facial and front of bucca are golden; the row of hairs 

 on parafacial keeps close to the eye as it ascends; 

 frontals about nine, rows rather wide apart and only 

 moderately diverging below, hardly reaching the mid- 

 dle of the second antennal joint; antennae black, third 

 joint twice the second and reaching three-fourths the 

 way to vibrissfe, which are slightly above the oral mar- 

 gin; arista plumose as usual, a little over half way, its 

 middle third light colored; bucca over one-third the 

 eyeheight; back of head with several rows of black 

 hairs, and only a few pale ones close to the neck and 

 below; outer vertical not differentiated. 



Thorax with the usual 3-5 black stripes; ant acr 

 well developed, prescutellar pair of good size ; stpl 3 ; 

 scutellum with the usual two marginals, one smallish 

 subapical, one apical of rather large size, suberect. 



Abdomen with the usual strong tessellations, a 

 permanent median black stripe on the middle two seg- 

 ments, hind edge of fourth red; first and second only 

 with lateral bristles, third with an interrupted row, 

 fourth with row of about 12. 



Hypopygium red; first segment rather small, 

 pollinose, on its hind edge with row of bristles, some- 

 times hardly more than hairs; second segment sub- 

 shining, globose. Forceps with the free part bent 

 back at right angle to the attached part, the latter 

 with rather dense hair, the former almost straight, 

 black ])ut somewhat reddish at base, shining, curved 

 forward just at apex, with scattering minute spines 

 hardly more than granules) on the liind edge. Acces- 

 sory plate padlike, rounded, yellow, small. Posterior 



