^''i89'o"'] PROCEEDINGS OF THE NATIONAL MUSEUM. 421 



marked. Lines obsolete or faiutly marked. T. a. line strongly dentate 

 between veins. T. p. line crenulate, parallel with outer margin. S. t. 

 line very indefinite, irregularly sinuate and dentate, often puuctiform, 

 rarely with darker preceding shade. Orbicular oval, indefinite ; reni- 

 form large white powdered, outwardly with a broad lunate white defin- 

 ing mark. Secondaries pale smoky fuscous, darker outwardly, fringes 

 reddish. Beneath reddish or fuscous, more or less powdery, with a vari- 

 ably distinct outer line and discal spot. Head and thorax concolorous 

 with primaries; tuftings small but obvious, not very distinctly marked. 



Expands 37 to 50 millimetres ; 1.5 to 2 inches. 



Habitat. — United States and Europe. 



Widely distributed and fairly common everywhere. The European 

 specimens are as a rule paler and more evidently white powdered, but 

 there are specimens from our fauna agreeing perfectly with those from 

 Europe. There is no difficulty in identifying tbe species. 



Xylophasia cogitata Smith, sp. nov. 



Head, thorax and jirimaries brick red, the former immaculate. Pri- 

 maries with all tlie transverse maculation faint, yet all traceable. 

 Basal line vague, narrow, pale. T. a. line pale, upright, but slightly 

 angulate, scarcely defined. T. p. line faint, pale, evenly outcurved. 

 S. t. line white, well marked at inception, but becoming lost beyond 

 the middle, its course but slightly and irregularly sinuate. A vague 

 but traceable darker red median shade. Claviform small, indefinitely 

 outlined in darker red. Orbicular small, oval, oblique white ringed. 

 Eeniform large blotchy white, not completely defined. Secondaries 

 fuscous, with a reddish suffusion, a lunulate marginal line, fringes 

 more carneous; a faint discal line and lunule. Beneath paler, powdery, 

 with an outer line and discal dots on all wings. 



Expanse l.CO to 1.G4 inches; 40 to 41 millimetres. 



Habitat. — Sierra Nevada California, Colorado. 



This species has i)robably been confused in collections with lateritia, 

 which it closely resembles in habitus, but from which it differs very 

 obviously in wing form, the primaries being much shorter and more 

 obtuse. Tbe orbicular is more distinct, the reiiiform more blotcby ; but 

 otherwise the maculation seems identical. Tbe genital structure, bow- 

 ever, is very distinctive and well emphasizes tbe cbaracter given by 

 the wing form. 



It is not impossible that the distribution is considerably wider tban 

 above given, and, in the light of later experiences it may not be im- 

 probable that our eastern form is not tbe same as the European species. 

 This I can not determine now, from lack of material. 



