REVISION OF SPECIES OF THE GENUS AGUOTIS. 65 



Agrotis boUii Grt. 



1883. Grt. Hull. LF. S. Gool. Surv., vi, IGO, Agrotis. 



hUaris Grt. 

 1880. Grt. Can. Ent. xii, 1.1:5, Agrotis. 



" $ Concolorous, silky, blackish gray, with a sprinkling of pale scales. 

 Antennje rather lengthily bipectinate. Head, collar, and thorax con- 

 colorous, collar a little darker tipped ; palpi darker at the sides. Only 

 the two median lines visible; these are even, pale, the inner line 

 oblique, the outer somewhat bent, nearly straight, not inthxted. A 

 black spot on the cell against the inner line, and a second quadrate, 

 larger at the middle. Tlnise spots follow and precede tbe orbicular, 

 •which with the reniform is concolorous with the wing and dillicult to 

 make out. The orbicular is V-shaped, open above; the reniform small, 

 upriglit, medially (ionstricted ; both spots indistinctly pale ringed; a 

 small spot on the line iiulicates the claviform. Median lines slightly 

 marked with black on costa. Fringes concolorous. Hind wings black- 

 ish, paler at base; fringes pale, interlined. Beneath both wings blackish, 

 with pale irroratious; a common extra medial shade line. Expanse 

 34""" ; Texas. " 



Compared to collar is and bailhwdis ; but evidently ver^' close to (jen- 

 iculata, and possibly a suffused form of that species. Southern speci- 

 mens of ^f'><jcj//r(^( tend to become more evenly colored, and in a si)eci- 

 men before me the orbicular is distinctly V-shaped. Still the form de- 

 scribed is very distinct from anything I have thus far seen. 



Agrotis quarta Grt. 

 1883. Grt.. Hull. Geol. Surv. vi, 258, Agrotis. 



" 9 . Fore tibia unarmed ; rosy brown, resembling baja. Lines brown, 

 badly marked; t. p. line broken into dots; subterminal line subcon- 

 tinuous, nearly straight. Orbicular round, nearly concolorous, with a 

 bright stain edging the tine incomplete anuulus within. Reniform 

 reddish orange, contrasting, upriglit, with incomplete brown annulus, 

 shaded with ochrey. Beneath paler, shaded with rosy, with discal 

 marks and exterior irregular common line. Collar brighter than the 

 rosy brown head and thorax. Expanse 40"'"'. Sauzalito, California." 



Seems a good species allied to badinodis; but entirely unknown to 

 me. It can not be referred to the b((ja groui), nor, in fact, properly to 

 this, if, as stated, the fore tibia- are unarmed. No 6 seems known, but 

 probablj' the antenna will be found to be pectinated. The vestiture is 

 not described and possibly the relationshii) may be more nearly with 

 the canica group. The color agrees with the species of that group. 

 It is impossible to do much with a descrii)tion like the above until a 

 specimen precisely fitting it comes to hand. 

 23045— Bull. 38 5 



