Lepidoptera of New York and Neighboring States 481 



4. A. semipurpurana Kearfott. Typically purplish gray, with the base, outer 

 margin, and a patch at middle of costa yellow; varying to forms that are wholly 

 vellow, with the usual markings showing as a different shade of yellow, or merely 

 as waterlining. Sometimes with whitish markings, or with orange bands. 



Larva on rose and oak. 



General, and somewhat commoner, as a rule, than A. albicomana. New York: 

 Ithaca, common. 



Variety dorsipurpurana Kearfott. Mostly pale yellow, but with a narrow con- 

 trasting blackish shade along inner margin, widening more or less distinctly into 

 teeth ante- and postmedially. 



With the typical form. New York: Ithaca. 



39. PERONEA Curtis 



(Acleris, Teras, Acalla, Rhacodia, Teleia Hiibner; Cheimatophila 

 Stephens; Alceris Fernald, in Dyar's List) 



Similar to Tortrix; as shown by the pupa closely related to Argyrotoxa. Fore 

 wing with all veins separate, R 5 running to costa (fig. 236), Cu 2 arising from well 

 before middle of cell ; the lower boundary" of the cell beyond it strongly upcurved ; 

 hind wing with R and Mj approximate, M 2 low. M, and Cu : connate . or shortly 

 stalked. Thorax sometimes tufted : costa normally nearly straight, sometimes 

 arched, notched at middle in subgenus Rhacodia (emargana, effractana), especially 

 in the female. 



Variation in some of the species is extreme; and the key can apply only to the 

 more usual forms. There are two or more broods, the adult hibernating. For the 

 larva see figure 244. 



Key to the species 



1. Fore wing with a broad notch in middle of costa, and apex strongly falcate. . 



24. effractana. 

 1. Fore wing with costa not notched, or slightly so in female; in the latter case, 

 with rounded apex. 

 2. Fore wing smooth-scaled. 



3. No localized markings; the wing regularly spotted or reticulate, or plain. 



1. minuta. 

 3. With a well-marked longitudinal stripe from base to apex. . . .2. angusana. 



3. A dark triangle on middle of costa 11. comandrana. 



3. An oblique dark line or shade across cell. 



4. With clean-cut lines or boundaries of dark shades at two-fifths and 



three-fifths way out on costa 3. ftshiana.. 



4. With such a line at two-fifths but none at three-fifths; normally with 



dark base 18. maccana. 



2. Fore wing with tufts, at least small ones in fold and beyond middle of cell. 

 3. Head and front of thorax contrastingly blackish. 



4. Five large tufts, two antemedial, two at middle of wing, and one near 

 end of cell; the pale parts white. 

 5. With contrasting white or whitish base or broad antemedial fascia. 



14. variegana. 



5. With a large black costal triangle 13. nivisellana. 



4. With more numerous or minute tufts, or one or two rather large ones; 



pale parts yellow or buff 21. permutana. 



3. Head and front of thorax not dark; or somewhat darkened (logiaria), 

 but shading into the ground color. 

 4. With a clean-cut diagonal scale-ridge clear across wing. 



16 



