NORTH AMERICAN EUCOSMINAE. 233 



24. Genus ANCHYLOPERA Stephens. 



Genotype. — Pyralis luridana Fabricius. 



Syno7iyms. — Eficharis Hiibner (Preoccupied name). Genotype. — 

 Tortrix derasana Hiibner. 



Phoxopteris'i^Yoit'&Qhk^e, {Phoxopteryx Authors). Genotype. — Tor- 

 trix siculana Hiibner. 



Characters as in Ancylis except that it has 7 veins in hind wing; 

 3 and 4 united. 



In spite of the fact that the united condition of veins 3 and 4 of 

 hind wing is not a stable character in the Eucosma complex of the 

 subfamily, it seems here to justify separation of Anchylopera and 

 Ancylis; for here we have none of the intergrades to be found in 

 Eucosma and TModia. The veins are always decidedly stalked in 

 Ancylis and always definitely united in Anchylopera. Again all the 

 species with 3 and 4 united have the same wing pattern, a pattern 

 possessed by none of the species of Ancylis proper. 



Specifically the genus presents considerable difficulty as the few 

 North American species are nearly all mixed in our collections and 

 the names juggled around in a most confusing fashion. To add to 

 the difficulty the genitalia are often so similar as to be no help in 

 separating color forms. The main trouble probably is that we have 

 too many names. Extensive rearings will very likely show that we 

 have only a few distinct species, and that these are variable in size 

 and color and except in rare cases are not confined to single food 

 plants. 



KET TO THE SPECIES OF ANCHYLOPEKA. 



A. definitivana, new species, described in Appendix is not included in this key. 



1. Fore wing with broad, well marked outer stripe from mid costa, pointing 



toward tornus ; or if without such, or with the outer stripe obscure, with 

 terminal fourth of wing strongly shaded with ferruginous ochreous or pale 



clay yellow, or with red basal patch 4 



Fore wing without a strongly marked outer stripe from mid costa ; if this 

 is sometimes weakly indicated, then with terminal fourth of wing not 

 dusted with ferruginous ochreous or clay yellow, but with entire pale 

 ground color gi'ayish dirty white; basal patch never red 2 



2. Fore wing with terminal area above tornus suffused with leaden blue scales ; 



extreme apex red (1) nuheculana. 



Without such leaden blue sufEusion above tornus; extreme apex brown___3 



3. White ground color of fore wing slightly dusted with grayish; liead cream 



white (2) subaequana. 



White ground color of fore wing well dusted with grayish; head sordid 

 ochreous (3) var. kincaidiana. 



4. Basal patch and outer dark markings of fore wing concolorous and black- 



ish fuscous 5 



Basal patch and outer dark markings of fore wing not concolorous; or 

 if so not blackish fuscous 7 



