THE CANADIAN ENTOMOLOGIST. 217 



form upright, elongate, narrow, slightly constricted medially, yellowish, 

 followed by a blackish arc and a more or less obvious blackish shading. 

 Under the glass, the black scales are seen to extend along the folds and 

 veins between the reniform and the t. p. line, while the surface of the 

 wing, generally, is seen to be sparsely peppered with black scales. The 

 reniform ij also preceded by a curving black outline and the yellowish 

 colour spreads a little above and below, so that Guenee's comparison of 

 its total shape to an elongated letter x becomes intelligible, though 

 by no means obvious. These black markings tend to be lost in the rub- 

 bed examples. The lines are seldom continuous and tend to become 

 dotted or wholly lost, or are merely marked on costa. The t. p. line con- 

 sists apparently of pale venular spots preceded by black dots. The t. a. 

 line is in some specimens indicated, indented above and below, medially 

 lounding outwardly. In one specimen the base of the wing shows a 

 slight gathering or patch of black scales. Noticeably in the female speci- 

 mens, which are perhaps fresher, the median lines appear as faint 

 continuous black shades. The subterminal line is indicated by the slight 

 difference in shade between the paler terminal and darker subterminal 

 fields, the latter of which is marked on costa by a darker shading. A 

 more or less obvious terminal line, sometimes well marked by interspaceal 

 disconnected lunular marks. Hind wings variable in colour, usually 

 quite pale with faint diffuse terminal shading, silky, in one male quite 

 dark ; terminal line variable, occasionally absent. Palpi blackish out- 

 wardly, and behind the eye usually some blackish scales. Thorax like 

 forewings ; front and collar somewhat paler. Abdomen quite pale or 

 whitish. Beneath, the forewings are darker, the hind wings pale, the 

 colours even, all markings lost. The male specimens vary in expanse 

 from 28 to 36 mil. ; Guene'e gives 35 mil. The females average ^^ mil., 

 as near as may be. 



Var. Sordida. 



5 ^s, 4 $ s. The colour is entirely sordid grey, without trace of red. 

 Under the glass I have, however, detected about costa a faint reddish tinge in 

 some of the paler specimens. The yellow tinge of the reniform is less obvious. 

 The lines are generally more distinct and continuous, and even the 

 median shade line is often evident running near the reniform, which latter 

 seems to indicate in this species the closure of the median cell, and is 

 always the most prominent mark of fimbriaris. In one specimen of 

 sordida, the basal patch is marked. There can be no doubt that this is 



