12 Journal New York Entomological Society, t^'o'- xxii. 



1 14. Palpi slender and upturned well beyond vertex, wings broad 115. 



Palpi stouter and not reaching vertex, fore wings more than twice as 



long as wide and irregularly angulate 116. 



115. Slender, both wings thin and irregularly angled Pangrapta. 



The fore wing only with an angle on M3, which is often slight ; stouter, 



Isogona. 



116. Trifid, female frenulum triple Brotolomia (46). 



Quadrifid, female frenulum simple Eutelia. 



117. With a long lobe and scale-tuft at middle of inner margin Plusiodonta. 

 With a distinct scale-tuft at anal angle only, our species orange and 



silver Eriopus (45) 



Without a scale-tuft on inner margin 118. 



118. One vein of hind wing wholly absent (47) 119. 



Hind wing with M, present, though often a mere thickened line, and M, 



free or short-stalked with Cui 122. 



M._, strong, M3 stalked with Cu, more than half-way to margin, 



Sarrothripus (48). 



119. Vestiture deep, of narrow strap-shaped scales Fagitana. 



Vestiture scaly 120. 



120. Palpi short, hardly exceeding the rough and protuberant front. 



Spragueia. 

 Palpi upturned to vertex 121. 



121. Palpi with curved slender second joint. Fore wing with Cu; strongly 



curved at base, hind wing with Sc and R fused to middle of cell, 



Characoma (49). 

 Palpi with straight second joint, somewhat blade-like. Fore wing with 

 Cu, straight, Sc and R of hind wing with short fusion near base, 



Galgula. 

 Z22. A pair of loose tufts of bright yellow spatulate scales on mesothorax, and 



a similar tuft on middle of abdomen Cerma (50). 



Mesothorax with low tufts, similar to those behind, or none 123. 



123. Eyes less than half as wide as front, nearly buried in hairy lashes, 



Sympistis. 

 Eyes more than half as wide as front or not lashed 124. 



124. Abdomen with several dorsal tufts 125. 



Abdomen with a single basal tuft or none, rarely with a second very 



slight tuft, or, especially in species with strongly lashed eyes, with 

 loose dorsal hairs on the following segments 152. 



125. Abdomen with the crests behind middle larger than those in front and 



with a massive crest at middle; a massive posterior thoracic crest, 



Harrisimemna. 



Abdomen with dorsal tufts becoming weak or absent on posterior 



half 126. 



