JANUARY, 1860. 99 



brown, silvery-gray at the base, with an oblique pale-golden 

 band near the middle of the wing, the costal portion being 

 nearest the base. On the costa, near the tip, is a pale-golden 

 spot, with a spot of the same hue opposite on the inner 

 margin, and one in the middle of the wing before* the tip ; 

 cilia pale brown, dotted with dark brown. Hind-wings 

 grayish-brown ; cilia rather darker. 



COSMOPTEKYX? Hiibner. 



The anterior wings are rather narrow and slenderly caudate. 

 The discoidal cell is elongate and very narrow, and closed 

 acutely behind with three subcosto-marginal nervules, the 

 first arising about the middle of the wing. The median 

 sends four nervules to the inner margin, the first arising 

 midway between the first and second subcostal branches, and 

 the last from the apex of the discoidal cell, together with an 

 apical branch, which almost immediately sends off a nervulet 

 to the inner margin, whilst the apical proceeds through the 

 middle of the slender, acicular, caudate extremity to its tip. 

 At the basal third of the wing, the subcostal nervure 

 becomes attenuated. The costal is nearly coincident with 

 the margin ; the submedian furcate at the base. The pos- 

 terior wings are narrow, almost setiform, and without a dis- 

 coidal cell. The submedian is central, simple and faintly 

 indicated until near the tip, when it becomes furcate. The 

 median, which is better defined, runs near the inner margin, 

 and subdivides into three branches to the inner margin. 

 The costal is coincident with the marginal. 



Head perfectly smooth, advanced, long, and flattened 

 above ; forehead very convex and globose ; face full, rounded 

 and somewhat retreating. Ocelli none. Eyes flattened, 

 scarcely visible in front, oval. Antennae nearly as long as 

 the anterior wings ; basal joint long, slender, and clavate ; 

 stalk setaceous and simple. Maxillary palpi extremely short, 

 scarcely perceptible. Labial palpi very long, slender, much 

 recurved and pointed ; the second joint somewhat compressed 



* See note in preceding page. 

 H2 



