ART. 29 IMMATURE STAGES OF SARCOPHAGID FLIES — GREENE H 



inconspicuous, dark ; on each side of the opening is a small, rounded 

 depression ; no anal tubercles. Anterior spiracles small, located close 

 to the apex of the puparium; each spiracle has seven yellow lobes; 

 spiracle dull, dark red at base. 



Length, 6 mm.; diameter, 2 mm. 



Aberdeen, South Dakota, July 12. Eeared from G. atlanis and 

 grasshoppers. 



12. SARCOPHAGA FUSCICAUDA Bottcher 



Large, dull, dark red. Posterior cavity deep, diameter large, lo- 

 cated centrally on the longitudinal axis; tubercles on outer edge of 

 cavity indistinct. Each spiracular plate is reddish black with three 

 yellow, narrow slits, the third slit much shorter than the other two ; 

 first slit deeply curved on lower half toward the lower end of the 

 middle slit; middle slits about parallel; spiracular plates separated 

 by a space slightly less than the width of one plate. Anal opening 

 some distance from the edge of the cavity ; each side of the anal open- 

 ing is a conical tubercle, these tubercles are widely separated. Pos- 

 terior end of puparium shows two segments slightly more pronounced 

 than the others. Anterior spiracles close to anterior end of puparium ; 

 each spiracle has. 27 small, yellow lobes, five of these are below the 

 edge and on the outside surface of the spiracle; basal part of the 

 spiracle reddish-brown. 



Length, 9 mm. ; diameter, 3.5 mm. 



Honolulu, J. F. Illingworth, collector; two specimens in national 

 collection. Honolulu, February 5, 1917; Timberlake, collector; in 

 collection of R. R. Parker. Reared from dead grubs. 



13. SARCOPHAGA STERNODONTUS Townsend 



Medium sized, sub-shining, dark red; more shining around the 

 posterior cavity. Posterior cavity deep, large, rounded, more pointed 

 at lower middle ; at the lower edge of the posterior cavity is a short, 

 sharply defined carina or ridge. Each spiracular plate is vei*y deep 

 red, subshining with three reddish yellow slits; middle slits about 

 parallel; on the upper and outside edge of each spiracular plate is 

 a broad extension, slightly broader toward the apex; spiracular 

 plates separated by a space equal to about two-thirds the width of 

 one plate. Anal opening depressed, some distance from the edge 

 of the cavity; each side of the anal opening is a small conical tu- 

 bercle ; these tubercles separated by a space equal to about twice the 

 height of one tubercle. Anterior spiracles about as high as broad, 

 not far from anterior end of puparium; each spiracle has 14 small 

 yellow lobes, otherwise the spiracle is a dull, verj' dark red. 



Length, 7 mm.; diameter, 2.5 mm. 



