494 



In one male received from the Airierican Entomological Society, while 

 the wings are well angulated, the outer Hue is much straighter than usual, 

 being but slightly sinuate, as is the line on the hind wings; but otherwise it 

 does not differ. 



This is our most common species, and is at once known by the much 

 speckled wings and ochreous-bordered, blackish lines. It varies greatly in 

 the distance apart of tlie two lines, which, in the fore wing, are in some twice 

 as wide apart as in others. 



This species is so variable that I have been able to find varieties corre- 

 sponding to Hiibner's fervidaria and Guende's fiacellaria. About Guenc^e's 

 flagitiaria I do not feel so sure ; but while.it is a distinct variety, 1 find forms 

 oi fervidnria which correspond to it, the lines being dark. Walker's speci- 

 mens in the British Museum labeled E. fervidaria, Jiscellana, imdjlagitiaria, 

 are different forms of the same S{)ecies. 



Hiibner's figures of T. fervidaria differ from the normal form of the 

 species, namely, T. fiscellaria, in the male wings being scarcely angulated, in 

 the outer line m\ the fore wings being bent backward and inward on the costa, as 

 no other species has it, and he does not represent the lines as showing 

 through on the under side, as those m fiscellaria do decidedly. Plate 12, fig. 

 2, represents the ordinary form (^ Guenee's fiscellaria), and fig. 3 the 

 variety with simply sinuous lines, which is ^vhw&v & fervidaria. 



The five males and one female from Vancouver's Island are larger, but 

 do not differ so much from eastern examples as the latter among themselves. 

 They are more yellow, with coarser dark speckles, and the lines are more 

 broadly shaded v/ith yellow. The length of one fore wing is 0.85, while that 

 of a large eastern example is 0.73 inch. Certain eastern examples from 

 Salem are colored much as in the Vancouver's Island ones. The examples 

 from Salem are deeply suffused with dark beyond the extradiscal line, the 

 shade extending half-way to the edge of the wing, while the inner line is 

 very diffuse. 



Larva. — Body cylindrical, sn)ooth ; head of the same width as the body. 

 Body yellowish-green above, pale purplish below. Two fine, blackish, lateral 

 lines, witli a pale line al)ove. Pupa rather slender, whitish, slashed and 

 si)olted wilh brown. Food-plant, Halesia diptera. — (Described from Abl)ot's 

 MS. drawing.) 



