LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 543 



9. Third segment of palpus longer. 

 10. Front oblique. 



11. Third segment of palpus conspicuous, well set off, 

 squarish; with a more or less distinct tuft in front 



.(% 328) 33. Samea . 



11. Third segment of palpus lying along the upper surface 



of the tuft on the second 34. Sameodes. 



10. Front rounded (larger species). 



11. Maxillary palpi small, shorter than width of tongue; 



second segment of labials broader 24. Sylepta. 



11. Maxillary palpi moderate, fully as long as width of 

 tongue; second segment of labials narrower (fig. 



329 ) 23. Pantograpta. 



6. Fore wing with R 5 divergent from R 3+4 , lying about half way between 



R 3+ 4 and MI; somewhat approximate to R 3+4 in Pachyzancla, 



which has a triangular second segment of the palpus, unlike 



Sylepta. 



7. Second segment of palpus trapezoidal, the third lying along the 



upper side on the tuft. 



8. Male with a fold on inner margin of hind wing; ground dark. 



38. Pachyzancla (perfusalis). 



8. Male without fold on inner margin of hind wing; sometimes 

 with sex scales on costa of fore wing; ground light yellow 



or pale brown 21. Blepharomastix. 



7. Second segment of palpus rounded ; the third well set off but 



small. 

 8. Third segment a third as long as second, fine-scaled and 



rounded. 



9. Maxillary palpi distinct; cell of hind wing at its lower angle 

 reaching decidedly more than half way to outer margin 



(fig. 336) '. 30. Hellula. 



9. Maxillary palpi obsolete; cell of hind wing reaching hardly 



half way to outer margin 26. Lygropia. 



8. Third segment of palpus broad and coarsely scaled, triangular. 



22. Conchylodes. 



1. Palpus more or less beaklike, porrect or oblique, with third joint porrect, and 



lying in the center of its terminal tuft, not on the upper side (figs. 339 



to 344); upper side of second joint always convex; R 5 usually divergent 



from R 3+4 . 



2. Eyes much narrower than front; truncate behind, with a wide hairy and 



scaly area of the head behind them (fig. 337) .41. Titanic. 



2. Eyes fully as wide as front, round, reaching practically to back of head. 



3. Apex of hind wing angulate, subfalcate 40. Diasemia. 



3. Apex of hind wing rounded. 

 4. Front conical (fig. 339). 



5. Maxillary palpi as long as second joint of labials, broadly triangular, 



as in Scoparia 49. Thelcteria. 



'5. Maxillary palpi small and pointed 39. Loxostege. 



4. Front oblique or rounded, without a point below; maxillary palpi_never 



as long as second joint of labials, triangular. 

 5. Palpi twice as long as head (figs. 340, 343). 



6. Hind wing yellow, contrasting with fore wing 42. Tholeria. 



6. Hind wing not yellow 46. Phlyctaenia. 



5. Palpi projecting beyond head by less than its length (fig. 344). 



