312 LEPIDOPTERA OF NORTH AMERICA. 



narrow, tapering, vertical. Eyes small, salient. Antennas slender, 

 with joints closely set, serrated beneath with scales. Palpi slender 

 cylindrical, curved, ascending rather above the middle of the front; 

 basal joint squamose ; middle and terminal joints smooth and equal 

 in length. Tongue about one-half as long as the body. 



Body slender, scarcely equal in length to the fore wings. Pata- 

 gia scale-like. Abdomen slender, more than one-half as long as 

 the body beneath. Legs smooth and slender ; fore tibiae with a 

 long, concealed internal spur ; hind tibiae with a pair of apical 

 spurs. 



The wing structure of the insect included in this genus resembles 

 most strikingly that of the Tineina, and must form a group con- 

 necting the Lithosides directly with it. 



1. P. compta Clemens. 



Palpi pale yellow, with the ends of the second and third joints 

 black. Head yellow, with a black spot between the antennae and 

 a black band across the face. Thorax reddish orange, with two 

 black spots in front ; neck yellow, edged behind with blackish. 

 Fore wings reddish orange, with four bluish-black patches placed 

 transversely on the wing and containing yellow spots ; the first at 

 the base ; the second interior to the middle of the wing ; the third 

 exterior to the middle, constricted toward the costa and connected 

 behind with the subterminal patch, which is constricted in the 

 middle. The hind wings are slightly hyaline ; dark brown. 



Texas. Capt. Pope's Coll. From the Smithsonian Institution. 



Clemens. 



Fam. ARCTIADAE. 



Group Calliniorplaides. 



Body slender, smooth or nearly smooth, much shorter 

 than the wings, either when folded or extended. Head 

 small, smooth, with ocelli. Fore wings elongate-trigonate ; 

 hind wings slightly diaphanous, ample, length equal to that 

 of the body, folded when at rest. 



Hind wings neuration arctiasform ; costal and subcostal 

 veins with a common origin nea * the middle of the disk ; 



