258 NaTuRAL History BULLETIN. 
Head, exclusive of the large, coarsely-facetted eyes, as wide 
as long, trapezoidal, nearly quadrate, coarsely but not densely 
punctured, rather convex above, without occipital fovee. 
There is an impression on ‘each side of the convex middle 
portion of the front inside the supra-antennal tubercles; the 
sides are not carinate; gula bicarinate, tempora rounded, 
nearly as long as the eye. Anfenne with long pubescence, as 
long as the head and thorax, first joint cylindrical, flattened, 
above, more than twice as long as thick. Second a little 
shorter, equally thick, cylindrical, rounded at the tip; third to 
eighth smaller, narrower, obconical, gradually and slightly 
increasing in thickness, ninth and tenth evenly increasing in 
width, trapezoidal, the tenth twice as wide as long; eleventh 
oval, truncate at the base, one-half longer than wide. Pvo- 
thorax wider than the head with the eyes, widest before the 
middle, sides convergent and very slightly sinuate toward the 
neck, less convergent but strongly sinuate near the base, 
which is twice as wide as the neck. Disk convex, coarsely 
and deeply punctured, the median basal punctures not at all 
conspicuous, the lateral foveze impressed on the declivous 
impressed space near the basal angles. /ytra broad-shoul- 
dered, wider than the prothorax at the base, and with this 
width and length equal; beyond the middle they are one-third 
broader. Disk moderately evenly convex, less strongly punc- 
tured, bifoveate at base, sutural lines not very close, parallel, 
but convergent near the tip, not deeply impressed; discal lines 
one-half the length, fine, parallel to the suture. Addomen 
short, strongly declivous behind, basal segment twice as wide 
as long, punctured, carine divergent, one-third the length of 
the segment and-including half its width. The third segment 
in the ¢ has large impressions on each side of the middle con- 
verging forward, leaving an oblong median elevation bearing 
long hairs, legs slender. 
Habitat. Northern Atlantic States. More rare in the West. 
N. CINCINATA, Casey. Reddish-brown, pubescence moder- 
ately long and dense. Length, 1.0 mm. 
