PERIGONIA. 159 



1. D.inscripta. Pterogon? inscriptumHsLrris. Thyreus? inscriptus Walker, 

 C. B. M. p. 308. 



The head is grayish-brown, and whitish above the eyes; palpi 

 reddish-brown. Thorax grayish-brown, with a double, curved 

 white line crossing the prothorax, edged behind with brown, and 

 a brown sagittal dorsal patch, with a short whitish line across the 

 middle of tegulaa. The abdomen is dull brown above, with three 

 or four subdorsal, deep brown spots ; beneath, a dull ferruginous 

 brown, with the hind portions of the segments of a lead color. 

 Anterior wings ash-gray at the base, in the middle, and towards 

 the tip, banded with brown; a short, obscure, brown costal streak 

 at the base; two brownish bands before the middle, united on the 

 inner margin by blackish-brown ; discal spot ash-gray ; a reddish- 

 brown band, arising on the costa at the origin of post-apical ner- 

 vule, convex in the middle, and retreating thence to the inner mar- 

 gin; the subcosto-inferior and medio-superior interspaces pale- 

 brown, as well as the portions of the succeeding interspaces 

 exterior to the band, and marked by reddish-brown lunules ; a deep 

 brown apical patch encircled with white ; and a subterminal one 

 similarly colored in post-apical interspace. Posterior wings dull 

 reddish-brown, with a dusky terminal border tapering to the inner 

 angle ; fringes white.* 



Indiana ; Long Island ; New York ; Pennsylvania. 



Clemens. 



PERIGONIA Boisd. 



Body broad, slightly fusiform. Head obtuse. Proboscis rather 

 short. Palpi very short and stout. Antennas setaceous, slender, 

 a little longer than the thorax. Abdomen much longer than the 

 thorax. Legs rather slender ; hind tibiae with four moderately long 

 spurs. Wings opaque, moderately broad. Fore wings hardly convex 

 toward the tip of the costa, rather oblique along the exterior border, 

 which is slightly angular in the middle and behind the tip ; fourth 

 inferior vein (posterior) remote from the others. Hind wings very 

 slightly denticulate along the exterior border. Male, antennae 

 minutely serrate setose. Female, antennae simple. ( Walker.) 



* Pupation. — Larva transformed in a cell. Tongue-case of pupa, an 

 elevated short ridge ; at its cephalic end a short central spine, and on 

 each of the eye-cases, a spinous tubercle. Color, very dark brown. 



