Lepidoptera of New York and Neighboring States 399 



3. E. septemberana Kearfott. Tawny brown with pink iridescence. A dull light 

 gray area dusted with dark gray on inner margin from antemedial line to outer 

 margin, over a third the width of the wing, into which projects a lobe of darker 

 brown, covering the end of the cell. Fringe of the darker brown, with a pale 

 basal line in the middle of wing; solidly pale at anal angle. The pale gray some- 

 times extending narrowly to the base. 18 mm. 



September. The larva of a closely related western species feeds on crab-apple. 

 Essex County, New Jersey; Scranton, Pennsylvania. 



4. E. lindana Fernald. Costal half of wing black-brown ; dorsal half pale 

 powdery gray, as in E. septemberana; the boundary clean-cut from the base nearly 

 to the apex, forming two large rounded projections of the dark area with a pale 

 one between them. 20 mm. 



September. Larva on Cornus. 



New Brighton, Pennsylvania. New York: Ithaca. 



II. Outer margin concave or notched at middle, the veins converging to the con- 

 cavity. No costal fold (Catastega). 



5. E. signatana Clemens. R 4 and R 5 separate. White dusted with gray; in 

 effect, very powdery light gray; head light, with outer side of palpi gray; thorax 

 strongly mottled with gray. Fore legs blackish with white bars on tarsal seg- 

 ments and two bars on tibiae. Fore wing with markings formed by gatherings 

 of the dark dusting. Antemedial line obscure above, extended and strongly angled 

 at lower angle of cell, and a little concave and irregular or straight below, pre- 

 ceded by a strong blackish shade, and ground nearly white beyond. Numerous 

 oblique costal white and gray striae from base to apex; the extreme base and 

 apex gray. (The striae extend a third the width of the wing toward the base, but 

 outwardly are no longer, and hardly enter the cell.) Some more nearly solid 

 gray shades below the tips of these stria;, extending from the tip of the blackish 

 antemedial shade to the outer margin below the apex. Speculum obscure, pre- 

 ceded by a couple of black spots; often suffused into a blackish triangle on inner 

 margin. Fringe cut with white below apex; with two gray lines, distinct toward 

 apex. Hind wing ash-gray. 15 mm. (Hedya Clemens, Catastega aceriella Clemens. 1 



Sometimes this moth occurs in large numbers on the bark of trees in June. The 

 larva forms a frass-tube in which it lives between two principal veins on the 

 under side of a leaf of maple, and a silken web extending between the two veins, 

 more or less crumpling the leaf. It eats only the parenchyma in the area covered 

 by the web. 



The name aceriella has priority but was based on the larva alone. This species 

 and the next would form the genus Catastega Clemens, distinguished primarily by 

 the peculiar larval habits. 



Quebec to Pennsylvania. New York: Rock City (Cattaraugus County), McLean, 

 New Windsor. 



fi. E. timidella Clemens. R 4 and R- separate. Fore legs banded as in T. sig- 

 natana. Thorax powdery gray. Fore wing blackish; a large whitish area along 

 inner margin, extending from basal angle to speculum, sharply defined above: 

 quite narrow at base, to a third way out; where the boundary extends obliquely 

 up to the middle of wing, then longitudinal in general direction, but sagging- down 

 in the midle, to the upper angle of the speculum, where it becomes ill-defined; 

 the line defined above in the median area with black and below with very slightly 

 raised silver-white scales. Costa outwardly striate as usual, the last stria almost 

 cutting off a dark apical dot from the rest. Speculum whitish, dusted with light 

 gray; with two broad, vague, silver bars, the outer one small; the whole preceded 

 by two or three more or less confluent black spots, usually heavier than in 

 T. signatana. A clear blackish line in fringe, cut here and there with white. 

 18 mm. {Catastega Clemens; Gelechia.) 



