454 WILLIAM T. M. FORBES 



patches of brown (formed of blackish dusting on an ochre ground), the markings 

 edged with series of silver-blue raised dots, which form continuous lines on the 

 outer part of the wing. Basal markings confused; median band broad, not quite 

 reaching the inner margin, which is yellow with a few black scales; the band 

 deeply notched on its inner side, at the cell; and opposite cell and on Cu, on the 

 outer side; a good-sized spot at anal angle; a larger band across apex, and a 

 small apical spot. Fringe mixed, yellow, brown, and gray, quite variable. Hind 

 wing fuscous brown; fringe white with a brown line in base; below dark fuscous, 

 concolorous with fore wing. 10 mm. (aryyroi'lana Zeller). 



June and July. 



Common and generally distributed south to Pennsylvania. Xew York : Fentons 

 (Lewis County), Newport, Rock City (Cattaraugus County), Portage, Big Indian 

 Valley, Albany, Poughkeepsie, Xew Windsor, Xew York City; Lynbrook, Long 

 Island. 



17. 0. constellatana Zeller. A little larger on the average than 0. coruscana; 

 the black mottling covering the whole surface except on the apical third, and 

 even there somewhat encroaching on the yellow ground, but leaving at least the 

 subterminal patch distinct. Hind wing a little paler on the average; whitish 

 below, strongly contrasting with fore wing. 20 mm. 



With 0. coruscana; not quite so common. X'ew York: Otto, Rock City, Portage, 

 Ithaca, McLean, Trenton Falls, Big Indian Valley, Schenectady. 



18. 0. astrologana Zeller. Ochre, almost evenly strigose with blackish on the 

 basal two-thirds, becoming pale ochreous with light dusting on the apical third. 

 Blue dots on basal part of wing evenly scattered; on apical part arranged in 

 three oblique series, which indicate the outer side of the median fascia, and the edges 

 of the subterminal fascia of corusca/nsi, but with these fasciae no darker than the 

 ground. Fringe largely ochreous. Hind wing a little lighter than that of corus- 

 cnna. 10 mm. 



Valve l>elow with a rough tubercle in place of a ventral spine. 



Illinois; Texas. Xew York: Mt Marcy, Xewcomb. 



O. albiciliana approaches this group in the- scattered blue spotting, but is much 

 darker without any areas of clear yellow, and the hind wing is contrastingly 

 paler at the base. 



19. 0. coronana Kearfott. Closely similar to small specimens of 0. astrologana; 

 fore wing almost wholly sutfused with black, leaving only some broken ochre fascia; 

 in postmedial and subterminal regions, especially Unvard costn. 1'2 mm. 



June. 



Canada; Trenton Falls, Xew York. 



20. 0. major Walsingham. Fuscous, similar in color and wing form to 0. con- 

 stellatana, but with the pale portions duller. Fore wing with a dull luteous, 

 erect antemedial fascia, and a parallel postmedial fascia running from two-thirds 

 of the way out on costa to anal, both evenly edged with slightly brassy or silvery 

 continuous lines. Outer half of costa with four pairs of pale stria}, the first two 

 connected with the postmedial fascia, the third free, and the fourth running down 

 into a rather pale subterminal fascia, which runs out at the middle of the outer 

 margin. Hind wing fuscous with pale fringe. 22 mm. 



July. 



Xorthern United States and Canada. Xew York: Xorth Twin Brook (Mt. 

 Marcy ) . 



This species is easily recognized by the faint continuous silvery or pale golden 

 borders to the pale fascia, visible only in a favorable light. Eastern specimens 

 are much darker than the typical form from the west coast. 



21. 0. frigidana Packard. Basal two-thirds dark gray, with obscure and con- 

 fluent blackish and fuscous striae and some scattered brown scaling, the outer 

 boundary oblique from costa at two-thirds way to apex, to just before anal angle, 



