NORTH AMERICAN EUCOSMINAE. 237 



In his description Clemens states that syiraeifoliana has the dark 

 markings reddish brown. This is contradicted by the supposed 

 "type" which has them dark grayish fuscous without a trace of 

 ferruginous and this has led to much confusion. Of course a rearing 

 from larvae feeding on Spiraea would settle the identity of spiraeifo- 

 liana but unfortunately none of the collections possesses a reared 

 specimen (unless the " type " be such) and I doubt if any one since 

 Clemens has actually reared the species. For the present therefore 

 1 am accepting the type as authentic, and determining and keying 

 the species accordingly. If Clemens's description rather than his 

 " type " shall hold, laciniana Zeller will fall as a synonym. The 

 Walker species {metamelana and discoferana) were placed in the 

 synonymy by Walsingham. On that authority and on the assump- 

 tion that Walsingham knew the true spiraeifoliana they must, for 

 the present at least, be so retained. 



I find among the Kearfott duplicates several specimens from Wyo- 

 ming County, Pennsylvania (" VI-lT-06, W. D. Kearfott"), that 

 agree with the " type " of spiraeifoliana in Philadelphia. A series of 

 these is now in each of the three collections. The Fernald collection 

 also contains what purports to be a " homotype " of spiraeifoliana. 

 It has no locality label and is considerably smaller than the type, but 

 otherwise seems to agree. 



Superficially spiraeifoliana much resembles angulifasciana. It is 

 larger, however, and has a well developed uncus. The latter organ is 

 lacking in Zeller's species. 



Male genitalia figured from specimen in National Collection from 

 Wyoming County, Pennsylvania. 



All specimens in National Collection, American Museum, and col- 

 lection Barnes from Pennsylvania. 



Alar expanse. — 13.5-16.5 mm. 



Types. — In Academy Natural Science, Philadelphia {spiraeifo- 

 lianm) ; in British Museum {metamelana and discoferana) . 



Type localities. — Pennsylvania? {^spiraeifoliana) \ "North Amer- 

 ica " {metamelana and discoferana) . 



Food plant. — Spirasa opulifolia. 



6. ANCHYLOPERA SEMIOYANA (Zeller). 



(Fig. 393.) 



Phoxopteris semiovana Zeller, Verh. Zool.-bot. Ges. Wien, vol. 25, 1875, p. 250. 



Ancylis semiovana Fernald, in Dyar List N. Amer. Lepid., no. 5248, 1903. — 

 Kearfott, Proc. U. S. Nat. Mus., vol. 28, 1905, p. 360. — Barnes and Mc- 

 DUNNOUGH, Check Lfst Lepid. Bor. Amer., no. 7178, 1917. 



This species seems to have given no difficulty. The extension of 

 the outer fascia into a fuscous suffusion below the costa readily iden- 



7806—23 16 



