NORTH AMERICAN EUCOSMINAE. 239 



In size, structure, and general appearance very close to anguli- 

 fascian.'a. Like the latter, it lacks an uncus, but it is at once dis- 

 tinguished by the more elongate cucuUus of its harpe. 



Male genitalia figured from paratype in National Collection from 

 the type locality. 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : Rhode Island and Maine. 



Alar expanse. — 11-13 mm. 



Types. — In National Collection. 



Type locality.— Weeka'pa.ugh, Rhode Island. 



Food plant. — Lathyrus maritima. 



9. ANCHYLOPERA BURGESSIANA (Zeller). 

 (Fig. 396.) 



Phoxopteris 'burgessiana Zeller, Yerli. Zool.-bot. Ges. Wien, vol. 25, 3875, 



p. 252. 

 Phoxopteris murtfeldtiana Riley, Trans. St. Louis Acad. Sci., vol. 4, 1881, 



p. 323. 

 Ancylis burgessio/na Fernald, in Dyar List N. Amer. Lepid., no. 5248, 



1903. — Barnes and McDtjnnough, Check List Lepid. Bor. Amer., no. 



7186, 1917. 

 Ancylis murtfeldtiana Fernald, in Dyar List N. Amer. Lepid., no. 5244, 1903. — 



Barnes and McDunnough, Check List Lepid. Bor. Amer., no. 7179, 1917. 



A comparison of the types of hurgessiana and murtfeldtiana shows 

 them to be the same species. The work of the larvae is fairly com- 

 mon in the vicinity of Washington, District of Columbia, on the 

 chestnut and chinquapin, as well as several of the oaks, and I have 

 reared the typical form from chestnut. 



Male genitalia figured from specimen in National Collection from 

 Wyoming County, Pennsylvania ("VI-17-06, W. D. Kearfott"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : Missouri, Pennsylvania, Massa- 

 chusetts, North Carolina, New Jersey. 



Alo/r expanse. — 11-15 mm. 



Types. — In collection Fernald {hurgessiana) ; in National Col- 

 lection {murtfeldtiana). 



Type localities. — Beverly, Massachusetts {hurgessiana) ; Missouri, 

 {murtfeldtiana) . 



Food plants. — Oak, chestnut, chinquapin. 



10. ANCHYLOPERA BURGESSIANA PRUNI, new variety. 



Like hurgessiana Zeller from which it differs only in the color of 

 the hind wing, which is a very pale smoky fuscous, almost white, 

 with a slight yellowish shade toward apex. 



Alar expanse. — 10-15 mm. 



Type.—C^i. No. 24857, U.S.N.M. 



