Rotes and Descriptions, No. 2. 15 



This species is characterised by its clear yellow color; the transverse 

 lines on the narrow anterior wings are not bordered with paler shades, 

 and are more crowded together, leaving- t\\e terminal space wider than 

 usual. The irrorations are obsolete. The posterior wings are very 

 pale stramineous testaceous, immaculate, without any median line or 

 shades. The dark fringes contrast forcibly with the pale squammation 

 of the wings. 



Habitat. — Chicago, 111., (Mr. A. Bolter.) Larva, unknown. 



In connection with the specimens and larva here described, Mr. 

 James Angus writes : (i As near as I can remember, the larvge of all 

 the four species are so much alike previous to the last moulting, that 

 it would be difficult to distinguish the one from the other. They are 

 then all lined and the lines, if I remember right, are all about the same 

 color, which is light purple. I intend however, if I live, to watch them 

 more minutely another season and I will give you the result of my ob- 

 servations. The specimens of the imago sent you are all of the ordi- 

 nary size and the peculiar characters of each are so constantly uniform 

 that I could scarcely detect any differences between the specimens I 

 have of each species except in size." 



In conclusion we state, that a number of the perfect individuals we 

 have here used and the alcoholic specimens of the mature larvae, are 

 deposited in the Collection of the Entomological Society of Philadel- 

 phia, the attention of American lepidopterists is called to the further 

 investigation of the species of this interesting genus. 



CCELODASYS, Packard. 

 Coelodasys apicalis, n. sp. (Plate 2, fig. 7, % .) 



Anterior wings rather blunt and short; apices more produced than 

 usual in the genus. Light brown shaded with whitish cinereous. 

 Basal space light brown, almost concolorous. A narrow linear black 

 streak runs, below the m. nervure and parallel to it, from base of the 

 wing to the first transverse median line ; this latter obsoletely geminate, 

 with a precediug or internal whitish cinereous shade, dark brown, 

 dentate on costa, thence irregularly undulate to internal margin. A 

 whitish cinereous costal shade extends over the disc to the black 

 luniform discal mark, which is very distinctly defined. Median space 

 below the disc, pale brownish, of a rather lighter shade than elsewhere. 

 Outer transverse line obsoletely geminate, with an internal whitish 

 shade, projected beyond the disc, irregularly dentate and undulate. 

 The nervules are narrowly and more or less continuously covered with 

 black scales. Terminally the wing is pale brown, with darker, short, 



