582 . WILLIAM T. M. FORBES 



3. Reniform hourglass-shaped, or broken into two wedges; rarely, reduced to 



a dot at lower angle of cell. 

 4. With a broad, contrasting paler median area. 



4. cinereomedia, 1. truncatalis. 

 4. Median area less contrastingly pale (not at all pale in male). 



5. Larger; blackish shade beyond antemedial line evener; Cu black 



before reniform 6. lugubralis. 



5. Smaller; blackish shade beyond antemedial line broken below Cu, Cu 

 not black before reniform 3. basalis. 



I. Ventral edge of valve not thickened, but bearing a pointed projection near middle; 

 unous tapering, with blunt apex (Scoparona Chapman). 



1. S. centuriella Schiffermiiller (fig. 352, 356). Varying from light ash gray to 

 nearly black; lines dark, diifuse; the outer one convex opposite cell, pale edged; 



FIGS. 352-360. SCOPAKIIN.E 



352, Scoparia centuriella, venation; 353, 8. basalis, venation; 354, 8. basalis, side 

 view of head; 35.5, 8. truncicolella (Europe), seta map of larva; 356, 8. centuri- 

 ella, left valve of male, side view; 357, 8. penumbralis, left valve of male, side view; 

 358, 8. basalis, left valve of male, side view; 359, 8. cinereomedia, left valve of 

 male, side view; 360, 8. lugubralis, left valve of male, side view. (These five figures 

 are drawn to the same scale from average-sized specimens of the species.) 



the inner line often indented on costa; claviform black, linear; orbicular linear or 

 a narrow ellipse; reniform irregular, or broken in two. Dark subterminal shades 

 toward costa and inner margin, sometimes narrowly connected. Hind wing clay 

 color, with blackish border and veins. Female usually darker, sometimes wholly 

 blackish, with obscure markings. 17-27 mm. 



Common locally. End of June and July. Caterpillar unknown. 



Massachusetts and north, southward in the Eocky Mountains to Arizona. New 

 York: Plattsburg, Peru, Newcomb, Essex County, Saranac Inn, Fentons (Lewis 

 County), Rochester, Buffalo, Ithaca, Jew Windsor. 



