NORTH AMERICAN EUCOSMINAE., 141 



Types. — In British Museum {strenuana and exvagana) ; Acadamy 

 of Natural Science, Philadelphia {flavocellana) ; Museum Compara- 

 tive Zoology (subversana) ; American Museum {minutana). 



Type localities. — " North America " {strenuana and exvagana) ; 

 Pennsylvania? {fiavoceUana) -^ Dallas, Texas {subversana) \ Essex 

 County Park, New Jersey (minutana). 



Food plants. — Arnbrosia artimisifolia, A. trifida (larvae are stem- 

 borers) . 



4. EPIBLEMA ABRUPTANA ( Walsingham) . 



(Fig. 259.) 



Paedisca abruptana Wai.singham, Illus. Lepid. Heter, Brit. Mus., vol. 4, 1879, 

 p. 53. 



Eucosma abruptana Fernald, in Dyar List N. Amer. Lepid., No. 5126, 1895. — 

 Kearfott, Proc. U. S. Nat. Mus., vol. 28, 1905, p. 354 (part). — Barnes 

 and McDxjNNOUGH, Check List Lepid. Bor. Amer., No. 6980, 1917. 



Tliis species is somewhat mixed in the collections. About half 

 the specimens determined by Kearfott are referable to Gretchena 

 dulciana Heinrich. The true abruptana is superficially much like 

 strenuana Walker from which it is distinguished by the distinctly 

 blue black terminal joint of its palpus and the blue black second 

 joint of its antenna, I believe it is nothing more than a color 

 variety of nu/merosana Zeller from which it is distinguished by the 

 lack of any pale shading on the lower half of the fore wing and by 

 its somewhat darker head and thorax. Bearing alone will determine 

 the synonymy or distinctness of the two. 



Male genitalia figured from typical specimen in National Collec- 

 tion from Tryon, North Carolina ("Fiske, 8-14-1904"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : North Carolina, Texas, Florida, 

 Louisiana, Illinois. 



Alar expanse. — 14-17 mm. 



Typ)e. — In British Museum. 



Type locality. — Texas. 



Food plants. — ^Unknown. 



5, EPIBLEMA NUMEROSANA (Zeller) . 



(Fig. 260.) 



Paedisca numerosana Zellee, Verh. Zool-bot. Ges. Wien., vol. 25, 1875, p. 317. 

 Eucosma numerosana Fernald, in Dyar List N. Amer. Lepid., No. 5100, 1903. — 

 Barnes and McDunnoitgh, Check List Lepid, Bor. Amer., No. 6923, 1917. 



This species with grossbecM^ praesumptiosa., defexana, and abrupt- 

 ana form a single species group and what I believe will prove to be 

 only one very variable but well defined species. All have the same 

 striking characters in structure and marking ; that is in the genitalia 

 7806—23 10 



