THE CANADIAN ENTOMOLOGIST. 



281 



they are less numerous anteriorly. On outer side of each spiracle there 

 is a crescentic group of rather large circular glands, placed very close 

 together. Antennae aborted, short, thick, composed of three segments 

 measuring respectively 18-25, 13-16, 27-28 mm. Mouth-parts large. 

 Spiracles chitinous, large and extended. Anal orifice circular, situated 

 in a depression, surrounded by a strong chitinous ring. Anal ring with 

 six long, stout hairs measuring from 53 to 89 mm. in length. Around 



y 





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^ J 

 © 4 



O 





o 



Fig. 35. — Antonina Nortoni. 



the anal area are many slender hairs, very much smaller than the bristles 

 of the anal ring. 



In Fig. 35 a represents the antenna; b^ anal ring; c, portion of 

 derm about anal ring ; d^ spiracle. 



This species was collected by Mr. J. B. Norton, on April 25th, 

 1899, at the bases of the stems of Boutelona racemosa on Blue Mont, 

 Manhattan, Kans. 



