MAY, 1860. 135 



the tip to beyond the middle. The under surface of both 

 wings shows a metallic hued subterminal band. 

 Imago on the wing in July and August. 



PlGRITIA. 



Fore-wings narrow, elongated, pointed and very slightly 

 retuse on the costa before the tip. The subcostal sends to the 

 costa, beyond the apical third of the wing, a long, thick vein, 

 which arises behind the middle, and subdivides into three 

 branches at its tip, the apical being forked, with one of its 

 branches delivered to the tip and the other to the costa before 

 it. The discoidal cell is much elongated and narrow, and 

 sends to the hinder margin a disco-central branch. The 

 median is three-branched at its tip, all of which are short, 

 and the two upper veins arise on a common stalk. Sub- 

 median is forked at the base, with the lower branch nearly 

 obsolete. Hind-wings narrowly lanceolate, broad at base, 

 with interior basal angle rounded. The subcostal vein is 

 simple and extended to the tip. Discoidal cell closed by a 

 very faint nervure, giving rise to a simple nervule. Median 

 nervure is three-branched, the last two branches from a com- 

 mon base. 



Head smooth, with decumbent scales, slightly retracted. 

 Forehead broad and rounded ; face with the scales spreading 

 out at the base of the tongue, so as to make it nearly equally 

 broad. Eyes oval, vertically placed. Ocelli small. Labial 

 palpi very short, smooth ; first and second joints rather thick ; 

 terminal joint pointed, slender, and as long as the second. 

 No maxillary palpi. Antennae setaceous, simple in the ? , 

 microscopically pubescent in the $ , rather more than one- 

 half as long as the fore-wings ; basal joint flattened and ex- 

 panded into a small eye-cap, with cilia in front. Tongue 

 scaled, rather longer than the thorax beneath. 



I have but one male, which is without labial palpi. With 

 the aid of good lenses, I cannot make out whether they have 



