ADT. 10. PUP ARIA OF 100 MUSCOID FLIES — GREENE. 33 



95. WINTHEMIA QUADRIPUSTULATA Fabricius. 



Medium size; dull, dark red. Spiracles shining black, faintly 

 raised above the surface; stigmal plates separated by a distance equal 

 to one-half of one stigmal plate. Each plate has three slits, each on 

 top of a faint elevation. Spiracles just above the longitudinal axis. 

 Button large, round. Anal opening small, far below the longitudinal 

 axis. 



Length, 8 mm. ; diameter, 3 mm. 



96. UROMACQUARTIA HALISmOTAE Townsend. 



Medium size, elongated ; dark red and subshining. Spiracles shin- 

 ing black, narrowly separated and located on horizontal axis. Three 

 slits, each on top of a well-defined ridge. Button small, round, lo- 

 cated near inner edge. Anal opening far below spiracles. 



Length, 9 mm. ; diameter, 3.5 mm. 



97. TRICHOPHORA RUFICAUDA Van der Wulp (Copecrypta ruficauda Van der Wulp). 



Medium sized ; dull, dark red. Spiracles shining black, tuberculate, 

 separated by a distance nearly equal to the width of one stigmal plate. 

 Three slits, each located on a well-defined ridge. Button small, round. 

 Spiracles located on longitudinal axis. Anal opening far below the 

 spiracles. 



Length, 8 mm. ; diameter, 3 mm. 



98. STURMIA OCCIDENTALIS Coquillett. 



Small ; dull, reddish yellow ; posterior end finely rugose. Spiracles 

 shining black, slightly raised above the surface, widely separated, 

 space equal to about one-third the width of one plate. Each plate 

 has three reddish slits, each located on top of a well-defined ridge. 

 Button fairly large, black, rounded. Spiracles located less than their 

 own height above the longitudinal axis. Anal opening small, far be- 

 low the spiracles. 



Length, 5 mm. ; diameter, 1.75 mm. 



99. STURMIA ALBIFRONS Walker (Gymnocarcelia ricinomm Townsend). 



Medium size; dull, dark red. Spiracles shining black, faintly 

 raised above the surface, widely separated, the space equal to one- 

 half the width of one plate. Each plate has three dark-yellow slits. 

 The two outer slits form a U, and the middle one is oblique. Button 

 large, round. Below the spiracles is a large, dark, rugose elevation 

 with a central depression. Anal opening small, far below the 

 spiracles. Spiracles located a short distance above the longitudinal 

 axis. 



Length, 8.5 mm. ; diameter, 4 mm. 



