1865.] 495 



even, nowhere constricted, forming two regular outward curves, the 

 upper of which the longest, and joining internal margin just above 

 anal angle leaving the terminal margin at the angle concolorous with the 

 ground color of the wing. An internal arcuate black band joins the 

 median band at the apex between the curves; base of the wing with 

 scattered dark scales which latter extend rather narrowly along internal 

 margin. A wide black terminal band constricted at the center, not 

 attaining anal angle ; the fringes bordering this band are stained with 

 blackish, elsewhere very pale. 



Under surface of wings very pale yellow, with scattered dark scales 

 at base ; on anterior pair two oblique black distinct fasciaj traverse the 

 wing, the inuer very oblique and joining the outer, which tapers infe- 

 riorly, just above internal margin, terminal space black ; on the poste- 

 rior wings the markings of the upper surface are reproduced. 



Head and thorax covered with dark greyish mixed scales, becoming 

 paler on the abdomen and under surface of the body ; terminal segment 

 furnished with long rigid hairs forming a moderate anal tuft. One 

 specimen. Exp. 1.30 inch. 



9 . A single specimen, which we regard as a } , differs from the 

 above by the more unicolorous less distinctly marked primaries. The 

 transverse band between the transverse anterior line and the median 

 shade line is greyish with a slightly paler central shade, while the an- 

 gulated spot beyond the cell is more constricted and likewise composed 

 of rather dark greyish scales. The whole wing is more distinctly 

 marked. The posterior* wings do not differ from those of the speci- 

 men first described, and which we regard as the % of this species, nor 

 does the under surface. The caputal, thoracic and abdominal squam- 

 mation presents the same coloration as in the % , while the anal seg- 

 ment is not so densely clothed with hair. Exp. 1.30 inch. 



Habitat. — -Hudson's Bay Territory. (Kennicott.) 



The present species differs from Si/neda graphica, by the more pul- 

 verulent, less purplish squamination of anterior wings ; the angulated 

 spot beyond the disk is not centrally so much constricted, and the same 

 may be said of the transverse band The posterior wings are very pale 

 yellow, almost testaceous, instead of bright yellow, while the internal 

 arcuated black band attains the median band, the latter more even, not 



*Guenee in describing S. graphica reverses the description of the coloration 

 of the wings from that which we adopt, for instance : " Ailes infer, noires, 

 avec une bande subterminale sinuense, une bande abdoniinale et une tache dis- 

 coidale, d'un jaune fauve." Noct. 3, p. 72. 



