160 LEPIDOPTERA OP NORTH AMERICA. 



1. P. lusca Fabr. Perigonia stulta Boisd. 



Ferruginous brown, somewhat cinereous and testaceous beneath. 

 Fore wings with three grayish, diffuse bands, and transverse black- 

 ish lines. Posterior wings with variable luteous bands, and streaks 

 along the interior angle. 



Mexico; South America; West Indies. 



CLEMENS. 



GROUP II. 



Fore wings not angular in the middle of the exterior border, and 

 are excavated behind the sub-apical angle. The exterior border 

 of hind wings convex, and not denticulated. Head conical. 



2. P. subhamata Walker, p. 102. 



Brown (male) or ferruginous (female), paler beneath. Wings 

 with oblique, undulating, pale ferruginous bands, which are most 

 numerous on the fore wings, and the latter have a discal dot of the 

 same hue, and a cinereous sub-apical spot. Length of the body 

 1315 lines; of the wings 2832. 



Mexico and South America. 



CLEMENS. 



GROUP III. 



Head rounded in front, not conical. Fore wings somewhat 

 rounded at the tips, slightly convex and not excavated along the 

 exterior border, which is very oblique. 



3. P. glaucescens Walker, p. 103. 



Brown, testaceous beneath. Head with a white streak on each 

 side behind the eye. Antennae tawny, very slender, not longer 

 than thorax. Thorax slightly tinged with green. Abdomen fer- 

 ruginous, slightly glaucous ; fifth segment whitish ; sixth and se- 

 venth segment with a whitish tuft on each side ; apical tuft blackish. 

 Wings reddish beneath. Fore wings with a glaucous tinge, and 

 with two oblique bands, the one dark brown and interior, the other 

 ferruginous and exterior, and bordered with dark brown on its 

 outer side. Hind wings dark brown, with a luteous spot by the 

 interior angle, and a white speck near the base of the interior bor- 

 der. Length of the body 12 lines ; of the wings 28 lines. 



CLEMENS. 



