1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 475 



yellowish. The orbicular is also yellowish anil fairly well defined, 

 small; s. t. line indicated by faint yellowish dots. A row of small ter- 

 minal black points. Secondaries white. Beneath whitish gray, pow- 

 dery alon<? the costa and apices of all wings. Head and thorax concol- 

 orous. Expands 1.10 inches (27"'"\) 



Rabitat. — Arizona. 



A species peculiar by the short broad })rimaries with oblique outer 

 margin, and by the contrast in color between the two pairs of wings. 

 The antenna^, of the S are heavily bipectinate, the vestiture of the front 

 is rough, and the thoracic vestiture is scaly, dense, forming an indis- 

 tinct median crest. The palpi are well develoi)ed and attain the vertex. 

 The genitalia are like those of its near allies in character ; the side 

 piece is somewhat bent, the tip lappet-like, obliquely rounded, inwardly 

 spinulose. Near the base is a long, curved, moderately slender, taper- 

 ing, corneous spur, behind which is a stout, short, beak -like projection. 

 Mr. Graef has the unique S type. 



T. pectinata Smitb, sp r.ov. 



Primaries reddish luteous, densely irrorate, witli blackish powderings. 

 Basal line faintly geminate, rather well marked. T. a. line obsolete. T. 

 p. line rather close to outer margin; geminate, crenate, interrupted, 

 outer portion punctiform. S. t. line very faintly paler, slightly sinuate. 

 A row of more or less evident black spots just before outer margin. 

 Eeniform marked, upright, narrow, either paler or darker than ground 

 color. Orbicular obsolete. Secondaries reddish gray ; irrorate; a more 

 or less evident discal spot. Beneath reddish, jjowdery, with puncti- 

 form outer line, and distinct discal spots. Head and thorax concolorous 

 with primaries. Expands 1.35-1.40 inches (34-38'""'). 



Eabifat. — California. 



A large, robust species, the peculiar color and powderings making 

 the wings appear thinly scaled. The antennfe of the S are unusually 

 long and very heavily pectinated. The vestiture is rather loose, long, 

 hairy, forming indefinite tufts. The side pieces of the S genitalia 

 are bent, the lappet-like tip larger, oblique, inwardly spinulose. The 

 clasper is a rather long, curved corneous hook ; at base of this hook is 

 a short, stout, beak-shaped" process. 



The male type is with Mr. Edwards. Another specimen, in poor con- 

 dition, in my own collection (Coll. U. S. N. M.). 



T. terminata Smith, sp.uov. 



Primaries sordid yellowish gray; powdery; s. t. space somewhat 

 darker, terminal space somewhat paler, than the rest of the wing. Me- 

 dian lines faintly marked, pale, interrui3ted. T. p. line followed by a 

 row of black venular points, which are outwardly limited by pale dots. 

 The s. t. line is defined by the strong contrast in shade between the s. 

 t. and terminal spaces; it is irregularly dentate. A row of distinct 

 black spots close to outer margin. A diffuse, dark, median shade. Or- 



