REVISION OF SPECIES OF THE GENUS AGROTIS. 149 



verse lines obsolete; tbe t. p. line puiictiform, dots veuular. Claviforni 

 wanting. Ordinary si)()ts indefinite. Orbicnlar usually wanting ov ob- 

 solete; reniibriM dusivy lunate; a somewhat indelinitc median shade 

 crosses the median space over reuiform. Secondaries white, narrowly 

 margined with dusky. Beneath, white, powdery, a common dusky 

 transverse line and discal si)ot; the line on secondaries punctilbrm. 

 Tliorax and head concolorous, collar broadly dark brown interiorly. 



Expands 37""" ; 1.5 inches. 



IlAiJiTAT. — Colorado, Nebraska, Nevada, Kansas. 



A distinct species easily recognizable by the strigate transverse mot- 

 tling of primaries, entirely diti\irent from anything else in the group. 



Carueades sponsa Smith. 

 1837. Smith, Proc. U. S. Nut. Miis., x, 4.">7, Agroiis. 



Very dark gray, the lines and oruameutatiou obsolete. The lines ap- 

 parently geminate ; t. a, line wavy ; others not traceable. The ordinary 

 spots are just sufliciently indicated to prove them of ordinary size and 

 shape. Secondaries fuscous. Beneath paler, more fuscous gray, with 

 a darker common line and discal spot. Head and thorax concolorous ; 

 collar with a median distinct black line. 



Expands 32""" ; 1.25 inches. 



IIabitat. — Washington. 



A single 9 specimen. The species is much Wke pcrfusca., but differs 

 by the distinct black line ol collar and the somewhat .shorter, more ob- 

 tuse primaries. The ground color also is a distinct gray rather than fus- 

 cous, and I have no question as to the specific distinctness of this form. 



Carneades cogitans Smith. 



1800. Smitli, Trans. Am. Eiit. Soc, xvii, IG, Jtjrntis. 



GeKieral color ashen gray with a slight luteous tint. Head and thorax 

 unicolorous; collar with a median transverse black line. Primaries in 

 some si)ecimens with fine blackish powderings, usually very even and 

 smoothly colored without shadings or contrasts of any kind. Basal line 

 in a fully marked specimen geminate, distinct on costa and traceable to 

 the basal dash ; in other specimens it is entirely obsolete. T. a. line 

 gennnate, the two lines equally distinct, strongly oblique outwardly and 

 outcurved in the interspaces ; sometimes almost entirely obsolete. T. 

 ]). line single, fine, crenulate, strongly outcurved over cell, and then 

 almost parallel with the outer margin ; in some specimens nearly obso- 

 lete, but generally traceable. S. t. line usually entirely wanting, rarely 

 indicated by a vague dusky shading. A series of black terminal lunules. 

 A distinct narrow longitudinal basal line to the t. a. hue, beyond which 

 the claviform is more or less indefinitely marked with a few black scales. 

 Orbicular concolorous, slightly ovate, usually distinctly outlined in black, 

 sometimes with a preceding black line, sometimes with a narrow line 

 connecting it with the reuiform. The reuiform is inwardly well defined 



