402 THE CANADIAN ENTOMOLOGIST 



August. In the collections at Ottawa there are three specimens 

 Avhich were reared by Fletcher in 1885 from larvae collected in 

 May, the dates of emergence being Aug. 15, 18 and 22, respec- 

 tively. From our records of captured specimens, the moths of 

 Euxoa excellens are on the wing in British Columbia in the latter 

 half of the month of August and during September. The species 

 is widespread in distribution, being known to occur in the United 

 States, in the States of Oregon, Colorado (in September), and 

 California (in September and October). The species was de- 

 scribed from Vancouver Island specimens. 



Nothing definite is known regarding the earh' life-history 

 of the insect. From our present knowledge it would appear as if 

 the winter is passed in the egg stage. Possibly during certain 

 seasons hibernation may also occur in a young lar\al condition. 



Descriptions. 

 Mature Larva. Length 40 mm. Head 3.0 to 3.2 mm. wide, 

 rounded, pale brown, conspicuously spotted with dark brown; 

 ocelli black. General colour of body, dull grayish-white. Thoracic 

 shield pale brown spotted and blotched with darker brown and 

 divided by dorsal and subdorsal stripes. Dorsal, subdorsal and 

 lateral stripes whitish, all uneven but distinct. Stigmatal band 

 also whitish, uneven, and broken in places. Ventral surface paler 

 than dorsal surface. Tubercules brown, conspicuous, setae pale. 

 Spiracles black. Anal flap pale brown, blotched with darker brown. 

 Feet pale, the thoracic feet tipped and spotted with brown. Be- 

 fore pupating the markings on the body become faint. 



Pupa. Length 18-19 mm., width 6.0-6.5 mm., at widest 

 part; colour chestnut brown, shining. Posterior half of abdominal 

 segments mostly finely pitted. The cremaster bears two stout 

 spines in addition to which there are nearby four other smaller 

 spines. The two stout spines and two of the other smaller ones 

 are in a line; the remaining anterior two which are dorsal spines 

 are strongly reclinate. 



The earthen cell is similar to that made by other cutworms 

 of the genus. It varies in size from about 20-22 mm. in length, 

 to about 10-11 mm. in width, inside measurements. 



