14 PBOCEEDINGS OF THE NATIONAL MUSEUM vol.66 



half the width of one plate. Anal opening small, dark, depressed, 

 located some distance below the edge of the posterior cavity; each 

 side of the anal opening is a small tubercle ; these tubercles are sepa- 

 rated by a space about equal to twice the height of one tubercle. 

 Anterior spiracles are missing in these specimens. 



Length, 6.5-8 mm. ; diameter, 2.5-3 mm. 



Enola, Virginia, May 1, 1915 ; Sara Eeynolds, collector. 



19. SARCOPHAGA HAEMORRHOIDALIS Fallen 



Large, dull, brownish red. Posterior cavity deep, nearly i-ound, 

 the gre'atest width being on the horizontal ; located centrally on the 

 horizontal axis; there are two pairs of rounded tubercles above the 

 center line and one pair below. Each spiracular plate is dark red 

 subshining, with three narrow, yellowish slits, the first or inner slit 

 is bent slightly just above the middle; on the inner edge pf each 

 plate, near the base, is a small ridge; spiracular plates separated by 

 a space about half the width of one plate. Anal opening distinct, 

 located a short distance below the cavity. Anterior spiracles close 

 to the apex, much wider than high, with 14 small yellow lobes : the 

 bas'al portion of the spiracle deep red. 



Length, 9-10 mm. ; diameter, 2.5-4 mm. 



No date or locality given; specimens in collection of E. E. Parker; 

 two specimens in national collection. 



20. CHAETORAVINIA QUADRISETOSA Coqnillett 



Small, dull, yellowish red. Posterior cavity is of medium size, 

 elliptical, and located centrally on the horizontal axis; tubercles 

 around the edge of the cavity fairly distinct. Each spiracular plate 

 is subshining, deep red, with three yellow slits ; middle slits are about 

 parallel and longer than either of the other two; between the first 

 and second slits is a faint, narrow, elongated ridge ; spiracular plates 

 separ'ated by a space equal to about one-third the width of one plate. 

 Anal opening depressed, located some distance below the edge of the 

 cavity, slightly darkened near the outer edges; no anal tubercles. 

 Anterior spiracles at apex, wider than high; each spiracle has 13 

 yellow lobes, lower portion of spiracle is deep reddish. 



Length, 5.5 mm. ; diameter, 2 mm. 



Victoria, Texas, June 15, 1907 ; J. D. Mitchell, collector ; bred from 

 m'anure; Hunter, No. 1611-39. Dallas, Tex., August 10, 1907, bred 

 from manure; F. C. Pratt, collector; Hunter, No. 1611-11. 



21, SARCOPHAGA RUDIS Aldrich 



Small sized, dull, dark red. Posterior cavity fairly deep, ellipti- 

 cal, located on but entirely above the horizontal axis; immediately 



