194 LEPIDOPTERA OP NORTH AMERICA. 



2. S. cinerea Hubner. Lethia chersis Hubner. 



Head, palpi and thorax dark gray ; tegulse tipped with whitish 

 terminally, with a black line on the superior edge and a short in- 

 distinct one above and parallel to it, and a metathoracic spot on 

 each side. Abdomen dark gray, with a black dorsal line and 

 alternate black and white lateral demi-bands. Anterior wings 

 dark gray, with a black spot at base, a delicate black discal line ; 

 a black streak at the tip and in post-apical interspace, bordered 

 above with pale gray, in sub-costo inferior, medio-central and pos- 

 terior interspaces, and a slender black line in sub-median sulcus ; 

 a sub-terminal blackish line and one near the margin bordered 

 below with pale gray and both abbreviated toward costa. Poste- 

 rior wings sordid gray, with a broad median and a terminal black 

 band. 



Massachusetts ; Wisconsin ; Southern States. 



CLEMENS. 



3. S. sordida Hubner. Agrius eremitus Hiibn. Sphinx lugens Walker, 



p. 219 ? ' 



Dark brownish cinereous. Head and thorax paler on the sides, 

 with a rather broad blackish-brown stripe on the middle of tegula3, 

 extending to prothorax and edged above with two lines of the 

 same hue, and with a brownish dorsal line on the disk of thorax ; 

 metathoracic spots, black. Abdomen with a dorsal black line and 

 alternate black and whitish demi-bands on the sides ; beneath 

 white, with central blackish spots. Anterior wings brownish cine- 

 reous, with a black margined white discal spot, through which 

 passes a short blackish discal dash, and a smaller one above it ; 

 with blackish-brown costal marks over the disk, the two most 

 posterior of which reach to the discal spot and are joined or nearly 

 joined at an angle by two more or less distinct lines from the inner 



1 S. lugens. Blackish-gray, paler beneath. Head and thorax paler on 

 each side. Thorax with two black stripes. Abdomen with interrupted 

 white and blackish bands. Fore wings slightly tinged with brown, with 

 black costal marks, and with discal and exterior streaks ; two whitish 

 discal dots, the fore one occasionally obsolete. Hind wings black, with 

 two whitish undulating bands ; cilise white. Length of the body 17 19 

 lines ; of the wings 4246 lines. 



Mexico. 



