234 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 38. 



One male is before me. The species closely resembles Clemensia 



albata Packard in markings, though the specimens are lighter and 

 more broken than usual in that species, but the secondary sexual 

 characters of the male differ. The tuft on the fore wing below is 

 larger than in albata and darker and is followed by a patch of modi- 

 fied scales, while the hind wing lias a patch of modified scales covering 

 the cell above. 



CLEMENSIA ALEMBIS, new species. 



Fore wing grayish white, densely irrorated with brown; a broad 

 inner black curved hand, preceded by a clear whitish space; a 

 rounded black discal spot; a subterminal dentate line of the ground 

 color; terminal space of the ground color, with terminal row of 

 black dots. Hind wing with smooth pale yellow scales over the 

 cell, the costal area pale, the rest of the wing smoky blackish. On 

 the fore wing below is a large tuft of hairs and a patch of modified 

 scales in the area below the median vein, which is expanded at the 

 expense of the cell, the latter being crowded costally; costa folded 

 over at the base with a tuft at the end of the fold. Expanse, 21 mm. 



Cordoba, Mexico, January 28, 190S (F. Knab). 



T'/pe.—C-M. No. 12948, U.S.N.M. 



Another specimen is before me, collected January 15, and a third 

 taken in the same place, May, 1900 (W. Schaus). This species is 

 distinguished from the others in the group by the heavy black band 

 on fore wing and the great development of the secondary sexual 

 scale characters. 



Family ARCTTTD.E. 

 Genus HALESIDOTA Hubner. 



HALESIDOTA LUA, new species. 



Head and thorax straw color, shaded with sordid brownish; 

 abdomen brownish, the tip straw color. Fore wing straw color, 

 with concolorous, brown-ringed spots very faintly indicated, trav- 

 ersing the wing in rows parallel to the outer margin. The lower 

 half of the median space is shaded with brown and there is a brown 

 line along the inner margin and on the fringe. Hind wing broadly 

 smoky brown on the margin with a faint large discal cloud, the 

 markings illy defined from the lighter basal part of the wing. 

 Beneath the shadings are repeated, browner and better defined. 

 Expanse, 38 mm. 



One male, Zaciialpan. Mexico. July, 1909 (R. M filler 



Type. Cat. X... L2829, I'.S.N.M.' 



The species falls in Hampson's tables next to Ealesidota sthenic." 



I .it. Lep. Phal. Brit. Mus., vol. :'.. 1901, p. 155. 



