THE CANADIAN ENTOMOLOGIST. 69 



Plate IV. 



1 — Euxoa thanatologia Dyar, var. sordida Smith., 9 . Calgary. 

 The figure is a trifle too dark The only male I 

 have seen as dark as this specimen was taken last 

 summer at Lethbridge, by Mr. Strickland. 



2 — " thanatologia, var. 9 . The type thanatologia is some- 



thing between this and fig. 11. It has the basal and 

 subterminal areas pale grey, as in 11; the median 

 about as dark as the terminal in 2, with more and 

 longer ante-subterminal black dashes. 



3 — " thanatologia, var. 9 . Paler than No. 2 basally and 



subterminally, with darker median area, and 

 median shade line. 



4 — " thanatologia, var. perfida Dod, 9 . The palest I 



have of this variety. 

 5^ " thanatologia, var. d^. This is very near var. boretha, 

 but lacks the pale collar and costa. The ground 

 colour is brownish red, closely approaching the 

 ochrogaster-Vike forms. 



6 — " thanatologa var. cf. This is a deep red form with 



ochreous grey ringed spots and shadings, which 

 could very doubtfully have been distinguished from 

 a common form of ochrogaster if it had not been bred 

 with Nos. 2, 3, 4, 5 and several others, from eggs 

 laid by No. 1. The introduction into the brood, 

 unobserved, of the very dissimilar larva of ochro- 

 gaster is not in the least likely. The contrast in 

 colour between the red of 5 and 6, and the brown 

 of 3 and 4, is almost entirely lost in the photograph. 

 The average size of the bred (forced) specimens is 

 a little smaller than usual, though one characteristic 

 of the species is its size variation. 



7 — " thanatologia, var. boretha Smith, d'. Kaslo (Cockle). 



Pale, very slightly reddish brown. A little darker 

 and better marked only than a cf co-type in colln. 

 Cockle. One of the males bred from No. 1 was 

 almost exactly like this, but badly crippled on one 

 side. 



