RKVISION OF SrFX'IES OF THE GENUS A(iROTlS. 39 



low colliir of tlie loriiier, and tlie dark, blackish, brown priinarios and 

 black tipped collar of tbe latter. Vnisina is well known, and dilfers 

 from all the other species hy its large size and mossy green primaries, 

 on which is a very i)roininont white patch just beyond the reniform. 

 In this species also the posterior tufts exceed the anterior. Tlie re- 

 maining species are abnormally marked. Apposita is red brown, the 

 median space is pale, with a yellowish cast, the ordinary spots being 

 subobsolete, while the balance of the primaries is deep brown with a 

 powdering of black scales. 



VcrHilis and InfimatiH differ from all the others in the gray color, 

 obsolescence of transverse lines, the strigose markings, and elongate, 

 oblong orbicular. They may be distinguished by the dark ground 

 color, complete orbicular and concolorous ground color of costa of 

 vernilis, and the paler (!olor, open orbicular and whitish co.sta of inji- 

 matis. In the former also the reniform is larger and usually paler than 

 ground color; in the latter it is narrower, lunate, and darker than 

 ground color. 



In tabular form the species separate as follows: 



Ordinary spots discolorons white or creamy yellow. 



Collar creamy yellow StkllaRIS. 



Collar pale, superior halt" black INNOTAbilis. 



Ordinary spots when present not discolorous, contrasting. 

 Transverse lines distinct. 



Size large ; primaries mossy green, a largo white patch beyond reniform, ordinary 



spots distinct trasina . 



Size smaller; primaries dark brown, median space much paler; ordinary spots 



obsolete ArrosiTA. 



Transverse Hues obsolete ; orbicular elongate, narrow, oblique. 

 Dark gray; reniform moderate, rather paler; auuulato with paler gray and 



black ; secondaries dusky vkrxilis. 



Paler ; reniform narrow, lunate, dusky, not distinctly outlined ; secondaries 

 white iNFiMATi.s. 



I have not used the term Envois for this genus, of which 2)>'nsina is 

 perhaps to be considered the type, as subsequent authors have used the 

 term for quite miscellaneous assemblages, and I prefer not to add 

 another meaning to the term at present. 



Adelphagrotis stellaris Grt. 

 1880. Grt., Can. Ent., xii, 153, Jtjrotis. 



" 9 varies in color from blackish to reddish purply, nearly as bright 

 as lyhyllophora. Collar yellowish white, discolorous with head and 

 thorax. Palpi with pale third article. Reniform kidneyshai)od, yel- 

 lowish white, discolorous. Orbicular rounded, somewhat irregular and 

 slightly oblique, nearly concolorous with the wing, a little shaded with 

 yellowish, both spots annulate with dark. Lines single, blackish; half 

 line indicated; t. a. line waved; t. p. line lunulate, followed by a pale 

 shade against which the darker veins and faint cloudy poiutlets of the 



