^^im'' ] PROCEEDINGS OF THE NATIONAL MUSEUM. 211 



aniiulns. Orbicular variable in form; reniform rather narrow, somewhat 

 lunate. Secondaries fuscous, paler toward base, sonietinies with an 

 extra median darker line. Beneath, i)owdery, with common exterior 

 line and discal dot. Head and thorax concolorous with primaries. 

 AntenniE of male shortly pectinated, the processes bristled. 



Exi ands 27 to 32"'™ (1.08 to 1.28 inches). 



Habitat. — Canada to Virginia, west to Wisconsin. 



Four specimens are in the Museum collection ; localities as follows: 

 Maine; Kacine, Wisconsin (0. V. K.) ; Maryland (.1. B. S.). The 

 fringes are long and even, the primaries rather short, broad, and trig- 

 onate. The species is rather well marked and not easily confounded 

 with any other. 



The male harpes are obtusely angulate, very slightly enlarged toward 

 middle, the tip inwardly spinulose. Clasper stout, corneous, simple, 

 beak-like. 



Mamestra detracta Wlk. 



1857. "Wlk.. C. B. Mus., Lep. Het, xi, 752 Hadena. 



claviplena Grt. 

 1873. Grt , Butt". Bull., i, 194 ; Mamestra. 

 18S1. Grt., Can. Eiit., xiii, lid; pr. syu. 



Fuscous brown to blackish, sometimes with a yellow sufliision. In 

 dark specimens the transverse lines are obsolete, ordinarily they are 

 distinctly geminate; t. a. line with au outward curve, lunate between 

 the veins; t. p. line parallel with outer margin, irregularly dentate or 

 lunulate. S. t. line always visible, narrow, pale, irregularly sinuate; 

 a larger pale spot at hind angle, which is, however, often obsolete. 

 Basal line distinct, geminate. An obvious, short, black, basal streak. 

 Clavitbrm modei'ate, tilled with black, always distinct, and forming a 

 prominent feature in the appearance of the insect. Ordinary s])ots 

 somewhat p:ilerthau ground color, black-margined. Orbicular usually 

 round or oval, rarely oblong ; reniform large, kidney-shaped. Second- 

 aries dark, smoky brown or fuscous. Beneath variably dark, powdeiy, 

 a distinct common line and discal dot. Head and thorax concolorous 

 with primaries. Antennae of S shortly pectinate, the branches setose. 



Expands 27 to 35""" (1.08 to 1.40 inches). 



Habitat. — Canada; Eastern, Middle and Central States. Eleven 

 si)ecimens are in the Museum series, others in the duplicate material. 

 Tbe localities are as follows: Sharon, New York, July 15 (Me.ske); 

 New York ; Orono, Maine (J. B. S.) ; Washington, District of Columbia 

 (C. V. K.). 



The primaries are broad, the costa arched, outer margin rounded. 

 The wing form ami the distinct black claviform spot will render this 

 species ea.sily recognizable. 



The genitalia of the male are peculiar and dithcult to describe. The 

 harpes are slender, elongate, curved, broadly and roundly dilated at 

 tip, which is inwardly spinulate. The clasper consists of a chitiuous 



