124 PAPERS BY DK. B. CLEMENS. 



three nervules to the costa from the cell, the first from the 

 middle of the wing, and its last branch bifid, with both 

 branches above the apex. The median is two-branched, 

 the one nearest the base bifid near its end. The submedian 

 is furcate at its base. 



Hind-wings narrower than the fore-wings, costa nearly- 

 straight, but slightly curved; apex decidedly produced, with 

 the hind margin deeply and circularly excavated beneath it 

 and the anal angle rounded. The discoidal cell is broad and 

 unclosed, with a short independent discal nervule beneath the 

 middle of the wing. Subcostal nervure simple. Median 

 three-branched, the first delivered to the inner margin rather 

 behind the middle, the last to the rounded anal angle. 



Head smooth, with appressed scales. Forehead and face 

 broad and rounded. Ocelli none. Eyes oval, not promi- 

 nent, flattened. Labial palpi short, somewhat reflexed, 

 smooth, rather slender and pointed; terminal joint extremely 

 short, much slenderer than the middle. Maxillary palpi 

 not perceptible. Antennas about one-half as long as the 

 fore- wings, rather thick, but tapering, roughened; basal joint 

 rather slender and short. Tongue slender, scaled at the 

 base, longer than the anterior coxaa. 



N. lingulacella. Head, face and thorax dark fuscous. 

 Tegulas golden. Labial palpi pale yellowish, terminal joint 

 fuscous. Antennae dark fuscous. Fore-wings golden-yellow. 

 At the base of the costa is a dark golden-brown patch, not 

 extended beyond the fold, and margined behind and beneath 

 with iridescent silvery. On the inner margin near the base 

 and extended to the middle of the margin is a rather long 

 patch of the same hue, with an iridescent silvery internal 

 patch and touched exteriorly with the same hue. A large 

 trapezoidal golden-brown patch on the middle of the costa is 

 margined internally by a rather broad iridescent silvery streak, 

 which is slightly dark-margined internally, having also an 

 external silvery streak produced in the middle of the wing 

 toward the apex, and beneath it, at its anterior angle, a, 

 brownish-silvery blotch, pointing to the inner margin at the 



