224 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



Dyar (1903) bred timidella and thus established the identity of the 

 moth. According to his notes he reared two specimens, both females. 

 I have located one of these and it proves to be a male. We have 

 besides in the National Collection three other males in good condi- 

 tion. Kearfott also had a series of males and females under Clem- 

 ens's name, all correctly determined and agreeing with Dyar's reared 

 specimen. In 1903 Busck cited timidella as the type of Gatastega 

 and that citation holds; but Clemens's genus falls as a synonym of 

 Epinotia. 



Male genitalia figured from specimen in National Collection from 

 Hyattsville, Maryland (Busck, 1909). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: New York, Maryland, New 

 Jersey, Manitoba, British Columbia. 



Alar expanse. — 17-19 mm. 



Food plant. — Quercus. 



Inasmuch as the species was described from the work of its larva 

 it can not be said to have a type, unless we can consider Dyar's reared 

 specimen in the National Collection as such. In that case the cita- 

 tion of the type locality must read Bellport, Long Island, New 

 York. Clemens mentions seeing the work at St. Paul, Minnesota. 



47. EPINOTIA ACERIELLA (Clemens). 

 (Fig. 372.) 



Gatastega aceriella Clemens, Proc. Ent. Soc. Phila., vol. 1, 1861, p. 86; Tin. 



N. Amer., 1872, p. 178.— Fyles, Ann. Rept. Ent. Soc. Ont., vol. 25, 1894, 



p. 46. — Febnau), Gen. Tort., 1908, pp. 89, 56. — Walsingham, Biol. Cent. 



Amer. Heter., vol. 4, 1914, p. 238. — Baenes and McDunnough, Check 



List Lepid. Bor. Amer., no. 7278, 1917. 

 Hedya signatana Clemens, Proc. Ent. Soc. Phila., vol. 3, 1864, p. 514. 

 Steganoptyoha variana Clemens, Proc. Ent. Soc. Phila., vol. 3, 1864, p. 514. 

 OraphoUtha subnisana Zelleb, Verh. Zool.-bot. Ges. Wien., vol. 25, 1875, p. 294. 

 Thiodia signatana Febnald, in Dyar List N. Amer. Lepid., no. 5189, 1903. 

 Eucosma sigmatana Baenes and McDunnough, Check List Lepid. Bor. Ainer., 



no. 7084, 1917. 



Fyles' rearing of aceriella established the synonymy of aceriella 

 and signatana., so two of the three species described by Clemens in 

 his genus Gatastega are accounted for. The third, harfiarmeliella 

 yet remains to be reared and identified as adult. Dyar ^* suggests 

 that it is probably a synonym of Episimus argutarms Clemens. It 

 may as well rest there for the present. 



Both Fernald (1908) and Walsingham (1914) cite aceriella as 

 the type of Gatastega, but as Busck had previously (1903) cited 

 timidella as the type their later citations will not hold. At any rate 



" Proc. Ent. Soc. Wash., vol. 5, 1903, p. 128. 



