AKT. 29 IMMATURE STAGES OF SARCOPHAGID FLIES — GREENE 7 



DESCRIPTIONS OB' THE PUPARIA 

 1. SARCOPHAGA CISTUDINIS Aldrich 



Medium sized, dull, deep reddish black, very rugose with the seg- 

 mentation distinct. Posterior cavity distinct but not deep ; it is ellip- 

 tical and located centrally on the horizontal axis ; no tubercles on the 

 edge of the posterior cavity. Each spiracular plate is smooth, shin- 

 ing, reddish-black with three dark, dull yellow slits ; there are no in- 

 dications of ridges around the slits; the slits are straight and con- 

 verge slightly at their bases ; each spiracular plate is on a slight ele- 

 vation which is rugose. Anal opening is a distinct depression in the 

 middle of a large wrinkle just below the posterior cavity. Anterior 

 spiracles are missing in this material. 



Length, 10 mm.; diameter, 3.5 mm. 



Long Branch, X. J., no date. In collection of J. Bequaert and 

 National Collection. Reared from box turtle Cistudo Carolina. 



2. SARCOPHAGA COMMUNIS, var. OCHRACEA Aldrich 



Large sized, dull, reddish black, decided transversely wrinkled. 

 Posterior cavity deep, broadly elliptical ; located on but mostly above 

 the horizontal axis; a depression above (seen from lateral view) and 

 deeply notched laterally; numerous broad, flattened, yellowish tu- 

 bercles around the entire edge of the cavity. Each spiracular plate 

 is subshining, deep reddish with three long, reddish yellow slits; first 

 slit bent outward; middle slits decidedly converging toward the 

 apex; spiracular plates separated by a space equal to one-half the 

 width of one plate. Anal opening small and not very conspicuous 

 and located not far below the cavity. Anterior end of puparium de- 

 cidedly wrinkled ; first three segments very well marked and a broad 

 lateral ridge. Anterior spiracles located at the apex of the 

 pupariiim; spiracles are about two and one-half to three times as 

 long as high, with 22 small, deep yellow lobes; basal portion of the 

 spiracle is deep reddish. 



Length, 8-9.5 mm. ; diameter, 3.5-4 mm. 



Dallas, Texas, August 28, 1907, to September 10, 1907; F. C. Pratt, 

 collector. Reared from cow dung. 



3. SARCOPHAGA COMMUNIS Parker 



Medium sized, dull, dark red. Posterior cavity medium sized, not 

 very deep, elliptical, located on but mostly below the horizontal 

 axis; on each side of the vertical center line, above the cavity, are 

 three blackish pointed tubercles; below the cavity, on each side, is 

 a small roughened area. Each spiracular plate is dull, dark red 



