ART. 10. PUPARIA OF 100 MUSCOID FLIES GREENE. 25 



large, prominent, and red. Spiracles located a short distance abore 

 the longitudinal axis. Anal opening small, reddish, located some dis- 

 tance below the spiracles. 

 Length, 5.5 mm.; diameter, 2 mm. 



59. FRONTINA ARMIGERA Coquillett (Encelatoria armigera Coquillett). 



Small; dull, yellowish red. Spiracles shining black, slightly 

 raised above the surface, separated by a space equal to one-half the 

 width of one plate. Each plate has three reddish slits, each on top 

 of a well-defined ridge. Button large, round, prominent, extending 

 beyond the edge of the plate. Spiracles located some distance above 

 the longitudinal axis. Anal opening small, far below the spiracles. 



Length, 6 mm. ; diameter, 2.25 mm. 



60. AMOBIA CONFUNDENS Townsend (Amobiopsis confundens Townsend). 



Medium-sized; subshining, dark red; posterior end distinctly 

 rugose. Spiracles black, subshining, slightly raised above the sur- 

 face, widely separated by a space equal to about one and one-half 

 times the width of one spiracular plate. Each plate has three broad, 

 yellowish slits nearly parallel and depressed along the center, each 

 on a distinct ridge. Button small, round. Anal opening small, far 

 below the spiracles. Spiracles located just above the longitudinal 

 axis. 



Length, T.25 mm. ; diameter, 3 mm. 



61. EXORISTA AMPLEXA Coquillett (Masiceropsis amplexa CoquUlett). 



Large; dull, dark red. Spiracles about flush with the surface of 

 the puparium, in a faint triangular depression. Spiracles shining 

 black, well separated; three slits reddish. Button round. Just below 

 the spiracles is a broad tubercle. Spiracles located on longitudinal 

 axis. Anal opening far below the spiracles. Posterior end of 

 puparium around the stigmal area is rugose. 



Length, 10 mm. ; diamet'ir, 4 mm. 



62. CHAETOGAEDIA ANALIS Van der Wulp. 



Very large; cylindrical, dull, dark red, darker on caudal end. 

 Slightly but broadly constricted on the dorsum near posterior end. 

 Caudal end rather blunt. Spiracles decidedly raised, shining black, 

 and each formed into three well-defined lobes, and each lobe with a 

 well-defined slit on the dorsal ridge; the inner and outer slit with an 

 indentation at the middle. Button well defined. Spiracles located 

 on longitudinal axis and separated by a space about equal to the 

 inner lobe. Anal opening located at about the lowest fourth of the 

 end view. 



Length, 10 mm. ; diameter, 4 mm. 



