24 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.60. 



raised above the surface, narroAvly separated by a space about one- 

 fourth the width of one plate. Each plate has six small, slightly an- 

 gular, yellowish slits on a flattened surface. Button large, round, 

 near inner edge. Anal opening small, far below the spiracles. 

 Spiracles located little more than the length of one plate above the 

 longitudinal axis. 

 Length, 7 mm. ; diameter, large, 3.65 mm. ; small, 2.5 mm. 



65. CRYPTOMEIGENIA AURIFACIES Walton. 



Medium size; dull, dark red; surface of puparium roughened or 

 granular to nearly rugose; caudal end much larger in diameter. 

 Stigmal plates shining black, widely separated, space equal to width 

 of one plate. Each plate is flattened on the dorsal surface and deep 

 reddish to black. Each plate has six yellowish slits, which are nearly 

 straight. Some specimens show the slits more angulated than shown 

 in the drawing. Button large, round. Anal opening large, located 

 far below the stigmal plates. Spiracles located far above the longi- 

 tudinal axis. 



Length, 6.5 mm. ; diameter, 3 mm. at largest diameter. 



56. HYALOMYODES TRIANGULIFERA Locw. 



Very small; dull, yellowish red; a depression on the dorsum of 

 the anterior half ; segmental lines of the last three or four segments 

 plainly seen on the dorsum. Spiracles shining black, narrowly 

 separated at the base ; slightly raised above surface. Each stigmal 

 plate has three very small, yellowish slits. Button small, not very 

 plainly seen. Spiracles located on longitudinal axis. Anal opening 

 small, far below the spiracles. 



Length, 3 mm. ; diameter, 1.4 mm. 



Some puparia do not have the segmental lines and the dorsal de- 

 pression. 



57. ADMONTIA HYLOTOMAE Coquillett (Hylotomomyia hylotomae Coquillett). 



Medium-sized; subshining, red to reddish yellow. Spiracles shin- 

 ing black, slightly raised above the surface, widely separated, space 

 equal to one-half of one plate ; each plate with three yellowish slits, 

 each located on top of a well-defined ridge. Button reddish, promi- 

 nent, rather quadrate in shape. Spiracles far above the longitudinal 

 axis. Anal opening small, far below the spiracles. 



Length, 7 mm. ; diameter, 3 mm. 



58. MASICERA. species (near EXILIS). 



Medium-sized; dull yellow; somewhat pointed on posterior end 

 Spiracles shining black, slightly raised above the surface and sepa- 

 rated by a very narrow space at the bottom. Each plate has three 

 slits, each on top of a well-defined ridge; slits yellowish red. Button 



