NORTH AMERICAN EUCOSMINAE. 71 



but they are hardly a good race as both forms occur and intergrade 

 in Utah making separation and definition impossible. I have, there- 

 fore, sunk Walsingham's ohliterana as a synonym. At most it desig- 

 nates only a color variety. 



Male genitalia figured from typical specimen in the National Col- 

 lection from Florissant, Colorado (S. A. Rohwer, July 7, 1907). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum and collection Barnes: Colorado, Arizona, Utah, 

 Florida. 



Veins 3 and 4 of hind wing normally united, occasionally stalked. 



Alar expanse. — 19-31 mm. 



Types. — Location unknown {offectalis) ; British Museum {oblit- 

 erana) . 



Type localities. — Colorado {offectalis) ; Arizona {ohliterana) . 



Food plant. — '•'■Artemisia.'''' 



67. TmODIA BUCEPHALOIDES ( Walsingham) . 



Sernasia hucephaloiQ.es Walsingham, Ins. Life, vol. 3, 1891, p. 465; Trans. Ent. 



Soc. Lond., 1895, p. 512. 

 Tkiodia offectalis Feknald, in Dyar List N. Amer. Lepid., no. 5198, 1903. — 



Dyab, Proc. Ent. Soc. Wash., vol. 5, 1905, p. 285. 

 Eucosma offectalis Baknes and McDunnough, Check List Lepid. Bor. Amer., 



no. 7095, 1917. 



This may be as indicated by the above synonymy nothing but a 

 <;olor variety of ofectalis. I have seen no male specimens from the 

 type localit3^ In the Kearfott collection of the American Museum 

 there is a female from Colorado which matches Walsingham's figure 

 and description except that it has veins 3 and 4 united while "Walsing- 

 ham's figure shows them as stalked. This, however, may not be 

 significant as ofectalis has them both ways. Kearfott's specimen 

 looks like a good species. 



Alar expanse. — 30 mm. 



Type. — In British Museum. 



Type locality. — Little Shasta, Siskiyou County, California. 



Food plant. — ^Unknown. 



8. Genus EUCOSMA Hubner. 



For tbe following new species, serapicana, palalmndana, not included in key, see Ap- 

 l>endix. 



(Figs. 21, 148.) 



Genotype. — Eucosma drculana Hiibner. 



Synonyms. — 1. Grapholitlia Treitschke in part (Pelochrista Led- 

 erer). Genotype. — Paedisca mancipiana Mann. 



2. PygolopJia Lederer. Genotype. — Penthina higubrana Treit- 

 schke. 



3. Catoptria Guenee. Genotype. — Tortrix cana Haworth. 



4. Affa Walker. Genotype. — AJfa Mpuncfella Walker. 



