872 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



it be Tpsolophus ligidellux: Hiibner), and it will be necessary todescribi; 

 at least some of the varieties separately. 



It has seemed reasonable to me that one or more varieties of this 

 evidently common Western species should have been described by 

 Chambers as one or more species, and I have especially carefully com- 

 pared this species with the descriptions of his several unrecognized 

 species, but I am unable to lind any w^hich I could make applv and 

 feel justitied in adopting- the name of. 



The specimens which I regard as typical may be recognized from 

 the following: 



Antenna brown, with indistinct lighter annulations. Labial palpi 

 slender; second joint Avhitish, sutfused with brown; the brush only 

 slightly developed, but divided and with a longitudinal dark streak in 

 the middle; terminal joint nearly uniform dark fuscous, the whitish 

 ground color being entirely covered. 



Face, head, and thorax light ochreous gray. Forewings light gray- 

 ish yellow, slightl}^ brownish toward the tip and with blackish brown 

 longitudinal lines from base to apex, following the veins and becoming 

 heavier and more blackish toward apex. Three short more pro- 

 nounced heavy black longitudinal lines independent of the others are 

 ver}^ conspicuous and are found, although modified in all the varieties; 

 the first and shortest at base just within dorsal margin; the second on 

 the fold, also starting more or less clearly from the base, but reaching 

 its characteristic thickness and tone outside the first line and ending 

 as a heav}^ line just before the middle of the wing, though after con- 

 tinued as one of the general thin lines to the dorsal apical edge. The 

 third line is midwav between the fold and the costal edge and begins 

 at the middle of the wing and reaches to the end of the cell; also 

 continued as one of the fainter lines from base to apex. 



Cilia gray. Hindwings as broad as forewings, yellowish fuscous; 

 cilia yellowish. Abdomen light yellowish brown. Legs yellowish 

 without any markings. 



Variety a. — The three prominent longitudinal })lack streaks are 

 intact, but the other longitudinal lines are nearly or (juite obsolete. 

 The color of the forewings below the three Inack lines is dark choco- 

 late brown, the color above the lines whitish purple, the two colors 

 standing shai'ply against each other, separated by the black lines. 



The color of head and thoi-ax is correspondingly dark ))rown. 



Variety h. — Ground color of forewings more whitish, thickly suf- 

 fused with dark ))rown and gray single scales. The three heavy black 

 longitudinal streaks are present, Imt with a tendency to break up in 

 shorter streaks or totally disappear, especially the first and the third, 

 which are rei)resented as one, two, or three longitudinal dots. 



The other longitudinal lines are obsolete, except right around apex, 

 where they ar(> indicated ])v a series of short indistinct streaks at base 

 of the cilia. 



