147 



distinct, geminate spot in the discal space; edge of wing darker; fringe icon- 

 colorous, darker at base. Hind wings dusky within ; discal dol distinct ; 

 beyond lineated obscurely with a few brownish scales; beneath, discal dot 

 distinct, dark cinereous, with transverse, black, scalloped, duskj lines; an 

 outer dark line, and a submarginal white line lined with dusky within, with 

 two finer lines between the discal dot and outer line. 



Length of body, <?, 0.35, 9, 0.33; of fore wing, <? , 0.50, 9, 0.45: expanse 

 of wings, 0.90-0.95 inch. 



Quebec, Canada (F. X. Belanger); Loudon, Canada (Saunders) ; Bruns- 

 wick, Me., common, July 10 (Packard) ; var. unidentaria, Mount Washing- 

 ton, New Hampshire, July 8 (Morrison); August 1G (Shurtleff, Mas. Bost. 

 Soc. Nat, Hist.) ; New Hampshire (Leonard, Harris, Mus. Bost, Soc. Nat, 

 Hist.) ; Milford, N. H. (Mus. Bost, Soc. Nat. Hist.) ; Milton, Mass., May 25, 

 July 15 ; Salem, Mass, attracted to lights, May 25 (Packard) ; Springfield, 

 Mass., July I.) (Dimmock); Brookline, Mass., August 18; Boston (Shurtlefl 

 and Sanborn, Mus. Boist. Soc. Nat. Hist.); Nahant, Mass. (Moering) ; West 

 Farms, N. Y. (Angus) ; Brewster's, N. Y. (Grote) ; var. unidentaria, Long 

 Island, N. Y. (Graef ) ; Philadelphia, Pa. (Ent. Soc.) ; Wisconsin (Mus. Peab. 

 Acad. Sc). 



This species also is double-brooded, appearing in May and again in July, 

 as in Europe. 



This moth is abundant everywhere, and differs from the equally common 

 O. designate/, in the pectinated antennae, very broad, black, or dark brick- 

 red middle band, bordered on each side with light-reddish wavy lines. The 

 black variety seems to be as abundant as the red, more typical form. It 

 seems to be less exposed to variation than in (). designate. The black or red 

 band varies much in width, and the discal dol in distinctness. In some speci- 

 mens, the median band is of a rich wine-brown hue. In some examples, the 

 median band is centered by a row of dark oval spots Our brown examples, 

 on comparison with one example from North Germany, received from Pro- 

 fessor Zeller, do not show any differences. Our black variety seems to be 

 identical with Haworth's unidentaria, common in England. Stainton retains 

 this as a distinct species from ferrvgaria, though he states that "the larva is 

 undistinguishable" from that of ferrugaria. Staudinger also regards it as a 

 distinct species, stating that it occurs in England, Northern Germany, and, 

 doubtfully, in Finland and Livland I am inclined to regard it only as a 



