18 PROCEEDINGS OF THE NATIONAL MUSEUM vol.66 



spiraciilar plates separated by a space equal to the width of one 

 plate. Anal opening small, inconspicuous, and with a depressed area 

 on each side. No anal tubercles. Anterior spiracles missing in this 

 material. 



Length, 7 mm. ; diameter, 2.5 mm. 



^Manhattan, Kansas, June 5, 1917 ; McColloch and Hays, collectors ; 

 Lafayette cage 611<7. 



30. SARCOPHAGA MOROSA Aldrich 



Large sized, dull, very dark red. Posterior cavity deep. Me- 

 dium sized, elliptical, located centrally on the horizontal axis; 

 tubercles on edge of cavity not very distinct. Each spiracular plate 

 is subshining, black with three yellow slits; the middle and third 

 slit about parallel; the first slit is slightly curved downward and 

 toward the middle slit ; spiracular plates separated by a space equal 

 to about half the width of one plate. Anal opening small, distinct, 

 located just a short distance below the edge of the cavity ; each side 

 of the anal opening is a well-defined tubercle with a large reddish 

 spot on the inner side. Anterior spiracles are missing. 



Length, 9.5 mm; diameter, 4 mm. 



Near Ottawa, Canada; F. Johansen, collector. Reared July 11, 

 1918, by C. T. Greene. 



31. SARCOPHAGA LATISTERNA Parker 



Large sized, dull, reddish black. Posterior cavity deep, elliptical, 

 located centrally on the horizontal axis; two tubercles on the upper 

 edge of the cavity faintly visible, the others indistinct ; laterally the 

 posterior end of the puparium is slightly notched. Each spiracular 

 plate is dull, black, with three narrow yellow slits, the two outer ones 

 closer together, middle slits about parallel; spiracular plates sepa- 

 rated by a space equal to half the width of one plate. Anal opening 

 small, distinct, depressed, with a low, rounded tubercle on each side ; 

 tubercles separated by a space equal to about one and one-half 

 times the diameter of one tubercle. Anterior spiracles are missing 

 in this material. 



Length, 9.5 mm. ; diameter, 4 mm. 



Andover, New Hampshire, Gipsy Moth Laboratory, 100416-7, 

 August 2, 1922. 



32. SARCOPHAGA MARGINATA Aldrich 



iMedium sized, subshining, yellowish red, and slightly arched 

 along the dorsum. Posterior cavity medium sized, elliptical, located 

 centrally on the horizontal axis; no distinct tubercles on the edge 

 of the cavity; a distinct depression on the dorsum just above the 



