TRIFIDM. 77 



the mountain regions of Central Asia, Japan (under the 

 name of fortis), and Canada and the United States, where 

 it seems to be known under the names of cata^hracta and 

 impecuniosa. 



Genus 4.8. NONAGRIA. 



Antenna) ciliated ; eyes naked, with prostrate back lashes ; 

 head prominently tufted ; thorax smooth ; abdomen long, 

 devoid of crests ; fore wings elongated, with only a faint 

 trace of the typical Noctua markings ; hind wings thin, vein 5 

 hardly perceptible. 



Larv.'E naked, feeding within stems of plants. 

 PuP^ in the larval habitation. 



A table of the five species may be useful : 



A. Fore wings truncate, dull red-brown, hind wings smoky 

 brown. N. canna'. 



A?. Fore wings blunt, light red- brown to straw-colour, a 

 row of round black dots along the hind margin. N. sparganii. 



A?. Fore wings blunt, brown or whity-brown with darker 

 shades, a row of black wedges in hinder area. N. typlice. 



A**. Fore wings very short and blunt. 



B. Fore wings pale brown with a black-brown strijae from 

 the base. N. ncurica. 



B-. Fore wings silky, smoky-brown, with a white central 

 spot, or twin spot. ]S!. (jcininipuncta. 



1. N. cannae, Ochs. — Expanse IJ to H inch. Fore win ws 

 truncate, dull red-brown or reddish-drab with a terra-cotta 

 tinge ; larger nervures clouded with black-brown ; hind wings 

 smoky-brown. 



Antennce of the male rather short and thick, simple but 

 minutely ciliated, red-brown ; palpi slender, reddish-brown, 

 rather prostrate; head strongly tufted with scales, form in o- a 



