NORTH AMERICAN EUCOSMINAE. 243 



ANCHYLOPERA LUNDANA (Fabricius). 



This European species was recorded from Oregon by Walsingham 

 and still appears in our lists. I have never seen an American moth, 

 however, that agreed with European specimens of Iwndana and am 

 inclined to the belief that it does not occur here and should be 

 dropped from our lists. 



25. Genus ANCYLIS Hubner. 



(Pigs. 13, 35.) 



Genotype. — Pyralis laetana Fabricus. 



Fore wing smooth; termen concave between veins 3 and 6; apex 

 distinctly falcate; 12 veins, 7 and 8 separate; 10 from about mid- 

 way between 9 and 11; 9 not closely approximate to 8; 11 from cell 

 at, or just before middle of cell; upper internal vein of cell from be- 

 tween 10 and 11; 3, 4, and 5 more or less approximate at termen; 2 

 straight or very slightly bent up toward termen; no costal fold in 

 male. 



Hind wing with 8 veins; 6 and 7 approximate toward base; 3 

 and 4 stalked. 



Male genitalia with harpe narrowly elongate; cucullus sharply 

 defined, long and narrow; neck incurvation normally pronounced 

 and broad; neck smooth; sacculus without spine clusters and very 

 sparsely clothed with hair like spines; costal hook weak, frequently 

 absent and replaced by membrane as in Rhyacionia. Uncus present 

 or absent; if present, bifid and hook like. Socii greatly developed, 

 very broad and densely haired. Gnathos greatly reduced almost com- 

 pletely fused with socii. Aedoeagus slender; straight or slightly 

 curved; moderately long to very long. 



A direct derivative from Epinotia. To be distinguished chiefly by 

 its falcate fore wing (fig. 13). The genitalia are not structurally 

 different from those of EpiTwtia. 



KET TO THE SPECIES OF ANCTUS. 



1. Fore wing bronzy brown with a metallic luster (18) loricana. 



Fore wing not bronzy brown nor with a metallic luster 2 



2. Fore wing with an outer dark transverse fascia or a dark cresent on outer 



half of costa 3 



Fore wing without such 7 



3. Fore wing with dark crescent from mid costa to apex (15) torontana. 



Fore wing with a dark transverse outer fascia 4 



4. Costa of fore wing broadly margined with pure white, finely strigulated with 



black and interrupted at middle by the dark fascia — (14) mediofasciana. 

 Costa of fore wing sometimes pale but not pure white 5 



5. Fore wing with an obscure whitish gray triangular patch on mid-dorsal mar- 



gin and a grayish white patch at tornus (9) carbonana. 



Fore wing without such 6 



