Lepidoptera of New York and Neighboring States 569 



For a full account of these three species see the Journal of Agricultural Research; 

 vol. 18, p. 171. 



11. P. illibalis Hiibner, race arsaltealis Walker. White, sometimes suffused with 

 fuscous; shaded and spotted with blackish; orbicular a black spot, larger than in 

 those species of the preceding group where it is solid; reniform a narrow vertical 

 blackish bar, often forming the center of a blackish shade; both rarely obsolescent. 

 Ordinary lines absent, terminal line broken into black bars, with a gray bar in 

 the fringe opposite each. Hind wing usually a little suffused with clay color, and 

 normally very lightly dotted with blackish and shaded with fuscous at margin; 

 rarely, with a dark discal bar. 25 mm. (H 47:48.) 



The typical form, with both wings almost pure white, with very little black or 

 brown dotting, except for the broken black terminal line, and with contrasting 

 large brown orbicular and reniform spots, appears to be confined to the South. 



May and June. 



Generally distributed north to Hymers, Ontario. New York: Buffalo, Ithaca, Big 

 Indian Valley, New Windsor. 



12. P. futilalis Lederer. Typically powdery dull fuscous; in the Mississippi 

 Valley race, powdery ochre yellow; markings obscure; postmedial, when distinct, 

 moderately dentate and sinuous, fine and dark; sometimes followed by a paler 

 shade ; terminal line often showing two dots to each interspace. Hind wing white, 

 sometimes with traces of the postmedial line far out toward the margin, lightly 

 shaded with fuscous (in the western race ochreous) along the outer margin. 30 mm. 

 (erectalis Grote. The yellow form is penitalis Hulst, not Grote. ) 



June. 



General in distribution. New York : Peru, Mt. Marcy, Lewis County, Lewiston, 

 Ithaca, Karner (yellow form), Albany, Poughkeepsie, New Windsor. 



13. P. inconcinnalis Lederer. Orange-ochre, practically immaculate; fore wing 

 and margin of hind wing powdery; base of hind wing slightly paler. 28 mm. 

 (crocatalis Grote, festalis Hulst.) 



Western States; reported from Illinois, probably in error for the yellow form of 

 ' P. futilalis. 



14. P. fumoferalis Hulst. Powdery ash gray; lines deeply dentate, antemedial 

 erect, postmedial moderately sinuous and followed by a dentate pale line or shade; 

 the margin beyond perceptible darker. Terminal line black, usually broken. Hind 

 wing light fuscous, with an even, slightly diffuse, darker border, often preceded 

 by a pale shade. Veins more or less distinctly darker, often darkening into a 

 series of short postmedial streaks; rarely, with a wavy postmedial line. 30 mm. 



Cocoon under bark of hickory; characteristically formed of a fusiform central 

 cocoon enclosed in two or three oval walls. Larva presumably on hickory. Moth 

 in June. 



Generally distributed; south to Pennsylvania and Illinois and west to California. 

 New York: Mt. Marcy, Lewis County, Ithaca, Schenectady. 



15. P. unifascialis Packard, race subolivalis Packard. Dull olivaceous, powdered 

 with cream-white on dark brown, with a more or less distinct, light, moderately 

 sinuous postmedial band, parallel to outer margin, not bent in at all below cell, 

 denned on inner side, diffuse on outer; sometimes obsolete, and sometimes very 

 conspicuous. Sometimes with a more or less distinct pale patch in outer part of 

 cell, the other markings obsolete. Hind wing duller, without greenish tint; with 

 or without an irregular pale postmedial shade or bar, sometimes denned with a 

 darker line on inner side. 20-25 mm. (hercynalis Grote, obnigralis Hulst.) 

 (H 47:51.) 



June to July. 



Maine to Illinois, and south to New York; the typical form in California. New 

 York: Peru, Axton, Fentons (Lewis County), Lancaster, Liberty, Portage, Potter 

 Swamp (Yates County), Ithaca. Big Indian Valley, Karner, Nassau, Rhinebeck, 

 New Windsor. 



