40 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



7. THIODIA FERRUGINANA (Fernald). 

 (Fig. 89.) 



Semasia ferruginana Febnau), Trans. Amer. Ent. Soc, vol. 10, 1882, p. 72. 

 Thiodia ferruginana Fernald, in Dyar List N. Amer. Lepid., no. 5168, 1903. — 



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

 Eucosma ferriiglnaiia Barnes and McDunnough, Check List Lepid. Bor. Amer., 



no. 7053, 1917. 



Male genitalia figured from specimen in the National Collection 

 collected at Falls Church, Virginia (May 2, 1914, Aug-ust Busck). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: Virginia, New Jersey, Penn- 

 sylvania, Ontario. 



Alar expanse. — 13-19 mm. 



Type. — In collection Fernald. 



Type locality. — New Hampshire. 



Food plant. — Unknown. 



8. TmODIA OCHROTERMINANA Kearfott. 



(Fig. 98.) 



Thiodia ochrotermi/iiaim Kearfott, Can. Ent., vol. 39, 1907, p. 57. 

 Eucosma ochroterminana Barnes and McDonnough, Check List Lepid. Bor. 

 Amer., no 7063, 1917. 



Male genitalia figured from cotype in National Collection, from 

 Plummers' Island, Maryland (Aug. 1900, A. Busck). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: New Jersey, Pennsylvania, 

 Maryland, New Hampshire, Massachusetts, Illinois, Montreal, Mani- 

 toba. 



Alar expanse. — 11-15.5 mm. 



Typ-e. — In American Museum. 



Type locality. — Montclair, New Jersey. 



Food plant. — Unknown. 



9. THIODIA PERFUSCANA, new species. 

 (Fig. 99.) 



Entire insect a dull dark fuscous. Palpi towards base and on 

 inner sides somewhat greyish or dirty white. Fore wing with a few 

 semimetallic streaks from costa especially toward apex but these 

 very obscure; ocellus defined by two semimetallic vertical bars and 

 containing four or five short, faint, horizontal black lines ; the ground 

 color of the ocellar patch somewhat paler than that of rest of fore 

 wing. Hind wing concolorous with fore wing; cilia not appreciably 

 paler. 



Male genitalia of type figured. 



Alar expanse. — 11-13 mm. 



Type. — In American Museum. 



