REVISION OF SPECIES OF THE GENUS AGROTIS. 141 



a row of sajiittatc blncU daslics inwai'dly. Tlie usual <U'ntiitious cioss 

 the s. t. Vuw, and reach nearly to th«' outer iuiir<^in. The orbicular is 

 open superiorly, oblique, oblong, soniewbat variable in size, souietiiues 

 reduced to a mere line. The reniforni is narrow, lunate. Secondaries 

 smoky fuscous. Beneath pale, somewhat iridescent, powdery; sec- 

 ondaries with a distinct discal spot. Thorax concolorous with pri- 

 maries; collar with a mesial black line. 



Kxi)ands oO-oL'"""; I.L'O-l.L'5 iiH;hes. 



II AUiTAT.— Montana, Black Hills. 



This species recalls iddlntensis, and is indeed very closely allied to 

 it; ditlerin^ obviously, however, by the dentations typical of tliis 

 group. 



Carneades plagigera Morr. 



1874. Morr., Proc. Bost. Soc. N. II. xvii, 16:5 Agrolis. 

 187r>. Morr., Proc. Ac. Nat. Sci. Phil., 1875, 57 Ayrotis. 



Smoky fuscous, strongly irrorate with white. Costal region strongly 

 marked with white scales, as is also the inner margin and the s. t. space ; 

 a white apical patch. Transverse lines not well marked. T. a. line 

 distinct only in the submedian space where it forms a slightly angulate 

 outward curve. T. p. line crennlate, often punctiform, its course below 

 the cell nearly straight or slightly incurved. S. t. line bisinuate, 

 indented, but not crossed by the ordinary marks on veins 3 and I. 

 The basal line is indicated by a double black spot at base. Claviform 

 concolorous, narrowly outlined in black. Orbicular elongate, narrow, 

 obli(pie, almost longitudinal. Reniform narrow, slightly constricted at 

 middle, upright. Secondaries dirty white with a fuliginous cast. Be- 

 neath whitish, powdered with gray. Head and thorax concolorous, the 

 latter marked with white at base of patagia". 



Expands 31-35 """ ; 1.35-1.-10 in(dies. 



Habitat. — Colorado, Montana, Nevada, Kansas, Washington, llli- 

 uois. 



This si)ecies may be always recognized by the dirty whitish, not yel- 

 lowish, secondaries. This character will serve to at oncje separate it from 

 olivdlis which is else closely allied to it. From ohlonffistif/ma the spe(;ies 

 is distinct by the fact that the ordinary dents do not cross the s. t. line 



Carueades olivalis Grt. 

 1871). Grt., N. Am. Ent. I, 43, Jgrotis. 



Dark olive or grayish, costal region powdered with white; transverse 

 lines not very distinctly nuirked, but still evident. T. a. line distinc^t 

 below median vein, narrow, black, outwardly curved between veins. T. 

 J), line single, evenly crennlate, ami nearly j)arallel with the outer mar- 

 gin. S. t. line white, narrow, indented as usual on veins 3 and l. The 

 ordinary spots are concolorous, narrowly outlined in black and with an 

 muert^ow^whut powtlery, white auuulus. Orbicular narrow, oblyug, 



