SARCOPHAGA AND ALLIES 125 



Holotype.— Male, No. 20512, U. S. N. 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 but somewhat reddish at base, shining, curved 

 forward just at apex, with scattering minute spines 

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

 sory plate padlike, rounded, yellow, small. Posterior 



