THE CANADIAN ENTOMOLOGIST. 59 



paralleling the outer margin of basal area. The latter is large, and is the 

 only distinctly-defined marking on the wing ; it consists of black scales 

 heavily overlaying the ground colour, and on costa extends to inner 

 fourth, angulated sharply outward to middle of cell, where it reaches inner 

 third of wing, thence obliquely inward to dorsal margin ; it is indented 

 once above and twice below middle. The costal fold is ground colour, 

 with four or five black spots. Costa beyond fold ground colour, with 

 faint streaks of cinereous ; towards and at apex and before termen these 

 streaks are more distinct and of an olivaceous cinereous shade. A more 

 or less illy-defined shade of blackish scales begins in the extreme apex and 

 runs obliquely to end of cell ; in darkest specimens, usually females, the 

 dark scales forming this shade are roughly grouped in two irregular spots, 

 one involving the apex and nearly to end of cell, the other over end of 

 cell and nearly reacliing apex of basal area. Ocelh'c spot not clenrly 

 defined. An irregular vertical bar of lustrous-whitish scales before, and 

 another shorter horizontal bar above the space, a few scales of the same 

 below apex. On the darkest specimens the dorsal margin is dotted with 

 black, in paler specimens these dots are cinereous. Cilia grayish-fuscous, 

 preceded on upper half by a narrow black marginal line, twice interrupted, 

 darker below middle. Hind wing, above and below, smoky-cinereous, 

 darker towards apex, cilia a shade lighter, preceded by a darker, then a 

 paler line. 



Under side fore wing smoky-fuscous, grayish-white along costa; cilia 

 grayish-fuscous. 



Seventeen specimens, male and female, sixteen from Norman Criddle, 

 Aweme, Manitoba, vii, 24, to viii, 13, and one from L. E. Marmont, 

 Rounthwaite, Manitoba, July. I take great pleasure in giving Mr. 

 Criddle's name to this species, as a slight appreciation of his thorough and 

 systematic work in these minute specimens. 



Co-types : Marmont's, Cnddle's and Heath's and in my collection. 



Hysterosia Mtrrickana, ^'^. nov. — Expanse, ^ 191025 mm., $ 22 

 to 26 mm. Light-brownish-fuscoup, outer fourth of tore wing dark brown, 

 an oblique streak of the darker colour arising from dorsum a fifth beyond 

 base, and absorbed in ground colour between middle and upper edge of 

 cell. 



Head cinereous, a dot of blackish above eye, beneath base of 

 antennse. Palpi long, once and a half the length of head, slender, second 

 joint rather closely clothed, above and beneath, tuft longer below, outer 

 joint less than half length of second, exposed ; cinereous, dotted with 



