LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 443 



New Hampshire, to Plummer's Island, Maryland. New York: Crosby (Yates 

 County). 



6. G. bolliana Slingerland. R 4 and R, stalked halfway to apex; tufts at and 

 along base of Cu 2 , a second obliquely in and below this one on fold and anal 

 vein, and on inner edge of speculum. Fore wing powdery gray, suffused with black 

 on basal third below fold, as far as the first tuft, sometimes sending a spur up 

 across the cell near the base; a black area in outer part of cell, bounded above by 

 a black bar along upper edge of cell, and a blackish crescent, convex up, covering 

 the bird-beak marking, and connected by a narrow black bar to the apex of the 

 fringe. Upper part of face blackish, overhung by a large gray tuft between 

 antennae; lower face gray. 18 mm. 



Caterpillar injurious to pecan in the South; moth flying northward in September 

 and southward in April. 



New Jersey to Wisconsin, Florida, and Texas. "New York" (Kearfott). 



23. EXENTERA Grote 

 (With Thiodia, in part) 



Similar to Gretchina; fore wings smooth (figs. 256, 261). 



Cucullus normal; anal indentation with short black spines; no strong lateral 

 spines; anal spines weak. Socii as in Hulda. 



The genus is close to both Gretchina and Thiodia, and the species which have 

 R and R B separate differ from Thiodia only in their genitalia and appearance. 

 They are narrow -winged forms that mostly fly in the early spring (whence the 

 name of the type species). While the genus is easily recognized, after a little 

 practice, the species are very close and not all are surely distinct. 



1. E. maracana Kearfott. Notch well-marked. Fore wing whitish gray; dark 

 basal patch extending a quarter of the length of the wing on costa and inner 

 margin, and running out in a right angle at middle; a blackish shade extending 

 out from middle of base; an oblique dark fascia from middle of costa to inner 

 margin at anal angle, with a brown shade crossing it in the middle. Median 

 area also shaded with light brown. A large horizontal triangular dark spot 

 below costa, its base resting on costa and apex on outer margin; speculum 

 with or without a few black dots; costo-apical white spots conspicuous; fringe 

 blackish outwardly. Hind wing light smoky brown. 13-16% mm. 



End of March to April. 



Cincinnati, Ohio; western Pennsylvania. New York: Ithaca, McLean. 



2. E. improbana Walker. R 4 and R 8 normally barely stalked. Fore wing normally 

 nearly immaculate gray, often with a strong purplish or greenish iridescence, or 

 duller fuscous gray without contrasts; the antemedial line marked as the boundary 

 of the darker base, more oblique on the dorsal half than in E. spoliana, and usually 

 straight or evenly and gently curved. 18-20 mm. (cressoniana Clemens, apriliana 

 Grote). 



The moth flies in early spring and is sometimes very common. The various 

 forms seem more or less constant locally, and would represent distinct strains. 

 Larva on hickory and perhaps apple (another species?). 



Eastern States : exact distribution uncertain on account of confusion with the 

 following species; the race oregonana extending west to the Pacific. 



3. E. spoliana Clemens. Typically gray, with strong whitish contrasts ; a blackish 

 area before antemedial line, and one on inner margin before anal angle ; the 

 antemedial line on dorsal half of wing normally strongly excurved or waved, and 

 more erect in general course. The commoner form with strong reddish shades, 

 at least over costal half of wing. Genitalia distinct from those of E. improbana. 

 18 mm. (haracana Busck, not Kearfott). 



