38 BULLETIN- 123, UNITED STATES NATIONAL MUSEUM. 



however, they must all stand as distinct species. The larvae of all, 

 so far as known, are stem borers. 



Male genitalia figured from typical specimen in National Collec- 

 tion from Brighton, Pennsylvania ("H. D. Merrick, 5-21-02"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: New Jersey, New York, North 

 Carolina, Maryland, Kansas, Virginia, Pennsylvania. 



Alar expanse. — 17-25 mm. 



Type. — In British Museum. 



Type locality. — "Eastern United States." 



Food plant. — Solidago. 



2. THIODIA AWEMEANA Kearfott. 



(Fig. 76.) 



TModia awemeana Keaefott, Trans. Amer. Ent. Soc, vol. 33, 1907, pp. 38, 39, 



41. 

 EuGosma awemeana Baenes and McDunnough, Check List Lepid. Bor. Amer., 

 no. 7052, 1917. 



Male genitalia figured from specimen in National Collection from 

 Cartwright, Manitoba (E. F. Heath). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: Manitoba and Ontario. 



Alar expanse. — 17-20 mm. 



Type. — In American Museum. 



Type locality. — Aweme, Manitoba. 



Food plant. — Unknown. 



3. THIODIA ESSEXANA Kearfott. 

 (Fig. 83.) 



TModia essexana Keaefott, Trans. Amer. Ent. Soc, a^oI. 33, 1907, pp. 38, 39. 

 Eucosma essexana Baenes and McDunnough, Check List Lepid. Bor. Amer., 

 no. 7049, 1917. 



Male genitalia figured from cotype in National Collection (" Cald- 

 well, N. J., May 22, 04, W. D. Kearfott "). 



Specimens in National Collection, American Museum, and colleC' 

 tion Barnes all from New Jersey. 



Alar expanse. — 17-24 mm. 



Type. — In American Museum. 



Type locality. — Caldwell, New Jersey. 



Food plant. — Aster patens. 



4. THIODIA ROSEOTERMINANA Kearfott. 



(Fig. 77.) 



TModia roseoterminana Keaefott, Trans. Amer. Ent. Soc, vol. 33, 1907, pp. 



38, 39, 40. 

 Eucosma roseGterminana Baenes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7051, 1917. 



Male genitalia figured from cotype in National Collection, from 

 Wisconsin. 



