REVISION OF SI'HCIES OF TITK GENUS AGROTIS, 09 



Expands 42""" ; 1.68 Inclics. 



Habitat. — llocky Mountains. 



Very readily distinguished from the preceding:, not only Ity (he size 

 and the color of secondaries, but by the broad, dark, inward shading to 

 the s. t. line, which is characteristic of this species. The single 9 

 si)ecimeu seen is from the collection of Mr. J. Meyer. 



Peridroma astricta Moi r. 

 1874. Morr., Pioc. Host. Soc. N. If., xvii, i:;.% Envois. 



Eed brown; basal, s. t, and terminal spaces d.irker. Transverse 

 lines geminate, though not very distinct. Basal line scarcely obvious. 

 T. a. line evenly and slightly oblique. T. p. line evenly curved over the 

 cell, thence i)arallel with outer margin. S. t. line irregularly dentate, 

 juarked by the contra.st between s. t. and terminal spaces, the former 

 being darkest, the latter nearer to ground color. Claviform indefi- 

 nitely outlined, of good size. Ordinary spots large, rather more gray- 

 ish than ground color, distinctly', though narrowly, outlined in black. 

 Orbicular oblique, oblong; reniform upright, slightly constricted at 

 center. Secondaries dull smoky brown ; beneath powdery, with darker 

 common shade line and discal lunule. Thorax very dark brown; 

 abdomen like secondaries. 



Exi)ands aO-SS'"'", 2-2.12 inches. 



Habitat. — New York, New Hampshire, and Northern States; Can- 

 ada ai)parently not common. Easily knowu by the large size and brown 

 color. 



Peridroma grandipennis Grt. 



len:?. Grt., Ann. .and Mag. N. IL, 188:5, .51, Jgrolifi. 



18H4. Grt., Tnins. Kans. Ao. Sc, viii, 54, A grof is (rcin-int). 



Rich, purplish red brown, veins marked incompletelj' with black, 

 terminal black marks distinct. T. a. line blackish, faintly geminate, 

 dentate, a long outward submediaii tooth. Other transverse lines 

 obsolete or only marked on costa. Orbicular small, round, pale, with 

 a dark central dot. Keniform small, indefinite, pale, centered with 

 ground color. A slightly darker dash connects the two spots. Sec- 

 ondaries pale fuscous, veins marked. Thorax like primaries in color; 

 abdomen shaded with reddish; beneath pale whitish, with darker com- 

 mon line and discal lunule, most evident on secondaries. 



Expands 45-52"'"', 1.S0-2.0S inches. 



Habitat. — New Mexico. 



I have seen but a single S , from Mr. Neumoegen's collection, and 

 could not make out the genital structure without risk to tlie specimen. 

 I thiuK they will be found to resemble those of occulta quite strongly. 



The species seems rare, and rather local. 



