ART. 10. PUPARIA OF 100 MUSCOID FLIES— GREENE, 15 



separated by a space equal to the length of one spiracle. Anal open- 

 ing large, located far below the spiracles. 

 Length, 12.5 mm. ; diameter, 5 mm. 



18. EXORISTA LOBELIAE Coquillett. 



Large; subshining, dark red or reddish black; segmentation fairly 

 well marked with small punctures. Spiracles tuberculate. Stigmal 

 plates blackish, located on distinct tubercles. These tubercles are 

 separated at their base by a distance equal to one and one-half times 

 the length of one plate. Each plate has three serpentine slits, one 

 above and two below. Button distinct, round, located near center 

 of plate. Immediately below the spiracles is a well-defined, rounded, 

 deep reddish-yellow tubercle, with an indentation on the apex. 

 Spiracles located on longitudinal axis. Anal opening small, very 

 remote from spiracles. 



Length, 6.75 mm. ; diameter, 3 mm. 



19. GYMNOSOMA FULIGINOSA Desvoidy. 



Medium size ; dull, dark red to a very dark reddish brown. Some 

 specimens vary slightly by having the caudal end somewhat en- 

 larged. In other specimens, the general outline is more elliptical. 

 Spiracles are shining black, protuberant, touching at the base, sepa- 

 rated by a V-shaped space. Each spiracle has three serpentine slits. 

 Button large, round, not very well defined. Anal opening small, 

 just beneath the spiracles. Spiracles located on the longitudinal 

 axis. 



Length, 6.5 mm. ; diameter, 3 mm. 



20. OCYPTERA CAROUNAE DesToidy. 



Medium size; elongated, dull, dark red; caudal end slightly 

 pointed; surface microscopically rugose. Spiracles protuberant, 

 shining black, with a granular, narrow area at the base. Spiracles 

 are connected at the base and the plates are separted by a V-shaped 

 space. Each plate is divided into three lobes. Each lobe has a 

 reddish-yellow, serpentine slit. Button large, round. Anal open- 

 ing small, located just below the spiracles. Spiracles located on the 

 longitudinal axis. 



Length, 7 mm. ; diameter, 2.4 mm. 



21. EXORISTA CONFINIS Fallen (Aplomyia confinis Fallen). 



Large; shining, dark red, with the segments well marked with 

 puncture-like marks. Largest diameter about the posterior third; 

 posterior end somewhat pointed. Stigmal plates blackish, located 

 about the length of one plate below the longitudinal axis; plates 

 slightly raised above surface and separated by a space about half 



