346 LEPJDOPTERA. 



Genus 3. PLATYPTILUS. 



Antenna' simple, very short ; palpi short but projecting; 

 forehead furnished with a prominent tuft of scales ; fore 

 wings cleft to less than one-third of their length, the sections 

 broad and angulated ; hind wings cleft to the base, the 

 divisions moderately broad ; anal angle obscure, but the 

 hinder division having a small spot ; cell aborted ; legs very 

 long, the tibiiB sometimes thickened behind. , 



We have five species, not difficult of discrimination. 



A. Expanse of wings over three-fourths inch. 



B. Fore wings ochreous or brownish ochreous. 



r. ochrodaclijhis. 

 W. Fore wings dull pale umbreous. 7'. inodadijlus. 



W. Fore wings bright yellowish-white with sharp brown 

 markings. P. zcttcrsledtii. 



B^. Fore wings dull brownish-white with dull brown 

 markings. P. <jonodactylus. 



A-. Expanse of wings under three-fourths inch. 



r. fis.scradci.ctt/lus. 



1. P. ochrodactylus, Ri/Jl ; diclirodactylus, Muhf. ; 

 bertrami, luicgiL — Expanse li inch. Fore wings pale 

 ochreous with elongated deep ochreous clouds; hind wings 

 pale smoky-brown with a reddish gloss. Legs pale ochreous, 

 clouded with brown. 



Antennte of the male short, very slender, simple, dark- 

 brown ; palpi porrected, slender, yellow-brown ; head creamy 

 yellow ; thorax pale buff ; abdomen rather browner, very 

 slender ; anal tuft pointed. Fore wings long and narrow ; 

 costa nearly straight except beyond the middle, where it is 

 arched ; apex sharply angulated, almost hooked ; hind 

 margin hollowed, cleft to one- fourth the length of the wing ; 

 rather roughly scaled, pale ochreous, a brown line along the 

 costa from the base expands beyond the middle to a narrow 

 brown cloud, and is cut off suddenly by an oblique whitish 



