Lepidoptera of New York and Neighboring States 449 



3. Hind wing beneath dark, concolorous with fore wing 16. coruscana. 



3. Hind wing beneath contrastingly pale, somewhat darkened at costa only. 



4. Hind wing below all pale; wings rounded 18. astrologana. 



4. Costa of hind wing below darkened; hind wing more or less quadrate, 

 with the outer margin at an angle to the dorsal and outer margin 



of fore wing nearly straight 17. constellatana. 



1. Fore wing with base dark gray, contrasting with the whitish apical third or 

 half. 

 2. Outer boundary of gray area, located near middle of wing, diffuse and 



farther out on costa than on inner margin (Ecdytolopha islandana.) 



2. Outer boundary clean-cut, more transverse, and farther out. 



3. Smaller, ground of apical part pinkish; outer boundary of dark base 

 usually striking inner margin well before anal angle; often followed 



by a separate blackish stria 27. separatana. 



3. Larger; ground pure or cream white; outer boundary running almost to 

 anal angle, the stria being sometimes traceable, but fused in with the 

 blackish base. 

 4. Apical white ground extended as a hook in apex of cell, partly outlining 

 a black dot in lower angle of cell. 



5. Expanse over 18 mm .> 23. capreana. 



5. Expanse 15 mm.; apical white region less sharply denned. 



22. apateticana. 

 4. No white hook in end of cell, and usually no obvious black dot in 

 lower angle. 

 5. Outer boundary of black area distinctly excurved at middle; sub- 

 apical gray streak small . . . . , 25. nimbatana. 



5. Outer boundary of blackish area nearly straight and erect, the apical 

 markings dusted with black, instead of being smoothly gray. 



6. Dorsal half of pale apex suffused with gray 26. tertiana. 



6. Apical region almost wholly clay-color 28. montanana. 



5. Outer boundary of blackish area drawn in at cell, with a well- 

 marked notch, surrounded with black. 



6. Eyes reduced 21. frigidana. 



6. Eyes large; a large mottled species 24. youngana. 



1. Fore wing with ante- and postmedial costal spots on a blackish ground; eyes 



small 6. mengelcma. 



1. Fore wing with a clear white antemedial fascia, sometimes lightly scaled 

 with gray, or with whole middle costal area suffused with white, and the 

 fascia distinct only toward inner margin; eyes large. 

 2. Blackish median fascia only narrowly reaching costa, or falling short; 



very broad at inner margin 29. duplex. 



2. Median fascia broad at middle, tapering strongly to costa and inner margin. 



15. aspasiana. 

 2. Blackish median fascia of nearly even width, and on costa about a fourth 

 as wide as length of wing. 

 3. Apical portion of tegulse and bands on disc of thorax white.. 3. carolana. 

 3. Thorax and tegul* blackish. 



4. Postmedial fascia forking, and enclosing a triangular blackish dorsal 

 spot (the inner fork gray, only the outer one white) dark markings 



overlaid with slender yellow scales 5. campestrana. 



4. Median area solid blackish; no triangular patch cut off on its outer 

 side. 

 5. Fore wing broader, the blackish median fascia normally nearly 

 twice as high as wide, median area with large lead-gray flecks. 



1. bipartitana. 



15 



