Noctmdae 



Genus COPABLEPHARON Harvey 



(i) Copablepharon grandis Strecker, Plate XXVII, Fig. lo, $ . 

 The species ranges from northern California and Oregon 

 eastward to Montana. 



(2) Copablepharon longipenne Grote, Plate XXVII, F'ig. 

 11, ?. 



From the preceding species it may easily be distinguished by 

 its much greater size. It has thus far only been found in Montana. 



(3) Copablepharon album Harvey, Plate XXVII, Fig. 12, $ . 

 The fore wings in this species are pure white, and not shaded 



with yellow, as is the case with the other two species, which 

 have been mentioned. It occurs from Oregon to Montana and 

 southv/ard to Colorado. 



Genus THYREION Smith 



(i) Thyreion rosea Smith, Plate XXII, Fig. 13, $ . 

 This insect is thus far only known to occur in Colorado. 



Genus CHLORIDEA Westwood 



(i) Chloridea virescens Fabricius, Plate XXVII, Fig. 14, $. 



Syn. rhcxiiv Abbi:>t & Smith; specianda Strecker. 



Found from the Atlantic to the Pacific and from Canada 

 southward into Mexico. 



Genus HELIOCHEILUS Grote 



(i) Heliocheilus paradoxus Grote, Plate XX VII, Fig. 15, 5 . 



The insect ranges from the middle of the Mississippi Valley 



south and west. It does not appear to be common in collections. 



Genus HELIOTHIS Ochsenheimer 



The genus is represented in both hemispheres by a number 

 of species. It used to be made to include a large assemblage of 

 insects, but latterly has been restricted by authors. 



(i) Heliothis armiger Hubner, Plate XXVII, Fig. 17, $> . 

 (The Boll-worm.) 



This insect, which is known to English entomologists as the 

 "Scarce Bordered Straw," is unfortunately not scarce in the 



