rOL. XIV 



1891 



1^''] PROCEEDINGS OF THE NATIONAL MUSEUM. 205 



blackish shade at inception; t. p. line with inner line lunulate and 

 slightly sinuate; outer line even, shading into the s. t. space, which is 

 lusted with gray, especially at costa ; s. t. line narrow, pale, dentate, 

 lud sinuate; an indefinite W-mark on veins 3 and 4, inwardly marked 

 lud shaded with black ; a row of black terminal lunules. Through the 

 uediau space is an indistinct shade line, darkening the cell between the 

 )rdinary spots. Secondaries dusky, with a darker discal spot and 

 nedian line, the latter paler shaded. Beneath, primaries dusky, with 

 ndefinite outer line and pale terminal space ; secondaries pale, with 

 lasky discal lunule, outer line, and shaded margin. Head and thorax 

 joocolorous, the former with a black line, crossing front, the latter with 

 ij, black line on collar, and patagise black margined. 



Expands 48-52 millimetres (1.92 to 2.08 inches). 



Habitat. — Canada, Eastern and Middle States. 



Six specimens are in the Museum collection, others in the duplicate 

 series, labeled, Kendall, New York (Burnett); Sharon, New York, July 

 tnd August (O. Meske); Lewis County, New York, August (C. V. R.); 

 klanchester, Vermont, August 3 (J. B. S.). 



This is a very distinct and strongly marked species, separated from 

 Uscalis by the dusky secondaries and more definite maculation, and 

 rom imbrifera by its cleaner cut maculation, brighter color, and irregu- 

 ar s. t. line. Thorax with a prominent anterior divided tuft. Ab- 

 lominal tuftiugs small and dark, easily rubbed off and obliterated. 

 Dhe anteunte of the male are very slightly serrate, the joints each 

 [urnished with a long stiff bristle on each side, as well as a bunch of 

 itifif hair. The male genitalia are distinctive. The harpes are dilated 

 It tip, somewhat acutely produced superiorly, furnished at inner side 

 vith two strong spines and a mass of strong spinules. A corneous, 

 inger-like pjocess crosses the harpe near base, where it joins the 

 5lasper. The clasper is very stout and heavy, broad at base, then sud- 

 lenly constricted into a stout curved hook, somewhat dilated at tip. 



The species seems nowhere common, though taken almost every year 

 u small numbers where it occurs. 



Mamestra imbrifera Gn. 



1852. Gn.,Sp. Geu,Noct.ii,76; Aplecta. 



1857. Wlk.,C.B. Mus.,I.ep. Het. xi,555; JEurois. 



1873. Grt., Buff. Bull., 1, 102; Mamestra. 



1875. Speyer, Stett. Eut.Zeit., XXXVI, 144; Mamestra. 



Sordid dusky gray ; transverse lines evident, geminate, but rather 

 ndistinct. Ordinary spots large, concolorous or slightly paler, out- 

 ined in black, and with white annuli. Basal half line distinct. T. a. 

 ine lunate, outwardly oblique. T. p. line lunulate, incurved as usual 

 below reniform. S. t. line pale, rather broad, tolerably even, inwardly 

 narked by dusky shadings, which, between veins 1 and 2 and 5 and 6, 

 ilmost cross the s. t. space, which otherwise is paler than the rest of 

 i( iphe wing. An indefinite median shade, darkening the cell between the 



