Lepidoptera of New York and Neighboring States 559 



dots between veins; median area sometimes paler; ordinary spots small, solid, dark. 

 Hind wing dark gray with more or less distinct dark and pale postmedial line and 

 pale costa. 20 mm. 



July. 



Holarctic, south to Labrador. 



3. T. torvalis Mceschler. Dark fuscous, with some white scales, markings almost 

 obsolete, so far visible like T. ephippialis. Hind wing much paler. 20 mm. 



Greenland to Labrador. 



4. T. marginalia Walker. . Powdery mouse gray ; blackish toward base and beyond 

 postmedial line; under the lens showing blackish, white, and orange-brown scales. 

 Antemedial line obscure, outwardly oblique, waved, postmedial line nearly straight, 

 white, contrastingly defined with blackish; orbicular a black spot, and reniform a 

 small black patch; median area slightly paler, grayer, and more powdery. Hind 

 wing with black-brown powdering on a luteous base; with a short straight post- 

 medial line. 18 mm. . {stenopteralis Grote. ) 



May. 



Maine to Alberta. 



42. THOLERIA Hiibner 



(Mecyna Guenee) 



Structure as in Phlyctsenia, the third segment of the palpus not well set off, 

 somewhat down-curved (fig. 340) ; midtibia with a groove and tuft of hair in male. 

 Hind tibia normal; M, and M 3 more closely approximate than normal in Phlyctaenia 

 and Pyrausta. 



1. T. reversalis Guenee. Fore wing brown with faint markings; hind wing bright 

 yellow, Avith blackish apex. 30 mm. 



June and July. Larva on Baptisia and Lonicera. 



New York and Illinois to Florida and Colorado. New York: Ithaca, Oneonta, 

 New Windsor, Staten Island; Glencove, Long Island (in a conservatory). 



43. AUTOCOSMIA Warren 



(Titanio; Metasia, in part) 



Front typically conically prominent, in our species (fig. 342), which belongs 

 doubtfully to the genus, oblique and rounded out. Our species with a bulla 

 between R, and R- of the male, as in Crocidophora ; palpi moderate, beaklike, the 

 third segment not well set off; hairy, normal; eyes wider than front; maxillary 

 palpi larger, triangular; no veins approximate, not even M 2 and M 3 ; wings rounded, 

 with costa more arched than usual; normal. 



1. A. helianthales Murtfeldt. Ash gray, shaded with whitish, especially over the 

 end of the cell, and costa opposite; postmedial line fine, Avhite, convex above, more 

 oblique than outer margin below, even, nearly touching terminal line opposite cell; 

 a more or less irregular streak on A out to postmedial line, forked near its tip; 

 a white line in base of fringe, preceded by a dark terminal line. Hind Aving pale 

 gray, with a white postmedial line far out, but receding toward anal angle. Upper 

 tibial spurs more than three-fourths way to apex of tibia, very small. 12 mm. 



April to July. Larva forming a large blotch mine in leaves of sunflower, the 

 scattered frass mostly on one side. Whitish green, sometimes shaded with rosy. 

 Head mottled brown, with whitish front; cervical shield whitish green with two 

 large brown spots covering most of its surface. Tubercles dark. Pupa usually 

 in the mine. Three broods, the last hibernating as larvae in the cocoon. 



Northern and central Illinois; St. Louis, Missouri; Texas. 



