LÉPIDOPTÉROLOGIE COMPAREE 435 



Pupœ. 



Thèse, too, so closely resemble those of helenœ that, except 

 for a tendency to hâve a slightly longer and more regularly 

 conical abdomen, there are no decided différences. Like those 

 of helenœ, they tend to lie over occasionally and to a like extent; 

 on one occasion I had a female pupa which lay over three winters. 



Imago. 



I. Mâle (PI. CLXI, Fig. 1571). — Although the maie of 

 helenœ was so close to zonaria, this insect is even more so, and 

 might, except for the depth of the black markings, be mistaken 

 for zonaria in which, however, there is decidedly a warm tone in 

 the black. Compared with helenœ, the shape of the wmgs is much 

 doser to zonaria, instead of being. as in that form, nearer to 

 pomonaria. The ground colour is white, with none of the ochreous 

 tint seen in helenœ; this only serves to heighten the intensity of 

 the black markings. 



As in helenœ and pomonaria, the first line is présent but it is 

 very thick and black. The médian line, although it may be 

 separate, is generally fused with the second line and the lower 

 portion is very thick and zonaria like. From this, unlike what 

 happens in helenœ, suffusions, more or less highly developed, 

 just as in zonaria, pass toward the base of the wing, more parti- 

 cularly along the inner margin. The course of thèse lines is 

 practically the same as m helenœ. The white band following, 

 the second line, is always broader, as m zonaria, than in that 

 hybrid, but is more often clouded with black. The subterminal 

 pale band is narrower, less toothed and nearer to zonaria although 

 generally somewhat less sharply deûned. The huge black wedge 

 in front of this is very much more strongly displayed than that 

 of helenœ and, were it not for its colour and the lack of clearness 

 of the outlines, it would be just the same as that of zonaria. Like 

 zonaria too, the subterminal band is nearer to the termen, and 



