103 
Mamestra latex. 
Aplecta latex, Guenée. 
Habitat, Atlantic District. 
Mamestra grandis, Lederer. 
Hadena grandis, Guenée. 
Habitat, Atlantic District. 
Mamestra Farnhami, Grote, Plate 3, fig. 2, ¢. 
6 9.—Eyes hairy; fore tibiae unarmed; antennae simple, very shortly ciliate 
beneath in ¢; palpi porrect, with small projecting third article; abdomen 
with moderate basal tufts. A little smaller than Mamestra grandis ; remarka- 
ble for the unusually sharply defined W-mark, the varied tints and the pale 
oblique streaked shade on median nervure below the ordinary spots, in which 
character it simulates Prodenia commelinae. The ground color of the fore 
wings is blackish with a dark green cast, and obtains over the median and 
terminal spaces. Subterminal space, median space along internal margin, 
and basal space before the t. a. line, pale reddish brown with a purple reflec- 
tion. T.a. line thrice waved, geminate, with pale internal shade; basal half- 
line similar. Orbicular outwardly oblique, moderate, pale, with a dark shaded 
center, finely ringed with black. Reniform elongate, incompletely ringed, 
with an inner shaded annulus. T. p. line forming a single inward arcuation 
opposite the cell; below vein 5 it runs straightly, interspaceally lunate, to 
internal margin. Subterminal line very distinct, pale, ‘commencing with a 
pale yellowish apical patch and forming the usual W-shaped mark, the 
points closing on the extremities of veins 3 and 4, preceded on the subter- 
minal space by interspaceal dark dashes before which are pale scale points. 
Terminal line black; fringes with a pale basal line and interrupted at the 
extremity of the nervules with pale scales. Hind wings pale with blackish 
borders and discal mark; veins marked with dark scales; terminal line 
forming broken black interspaceal marks; fringes pale subtestaceous. Be- 
neath pale, faintly reddish, powdered with dark scales and with a continued 
common extra discal line and partly annulate discal marks; on primaries the - 
pale subterminal line feebly reflected. 
Expanse, 42 m. m. Habitat, Colorado Territory (? Mr. Jas. 
Ridings; ¢ Mr. Theo. L. Mead, No. 45). 
Named in memory of Charles Severance Farnham, who died, May, 
1862, at Yorktown, in the service of his country, and was one of 
the early Curators in this Society. 
