410 PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 92 
Frons rather wide between eyes, frontal rectangle about 0.92 as 
long as wide, epistomal lobe longer than usual for the genus, rather 
narrow, with free end emarginate; surface black, feebly shining to 
subopaque, finely and densely granulate-punctate at sides and above, 
central area with a deep, subcircular to cordate concavity involving 
about half of diameter between eyes, with a fine, elevated median 
carina on lower half, sometimes extending entire length of concavity; 
hairs fine and rather short. Eye slightly more than three times as 
long as wide, more than half divided by a moderately broad emargina- 
tion. Antenna with club about 1.8 times as long as wide, first two 
sutures feebly oblique, partly septate; third suture strongly oblique, 
not septate. 
Pronotum about 1.2 times as wide as long, widest near base; sides 
straight and subparallel on posterior third, strongly, arcuately nar- 
rowed, then strongly constricted just behind the broadly rounded 
anterior margin; surface piceous black, shining, transversely im- 
pressed across dorsum opposite anterior constriction; disk with very 
deep, rather close, moderate-sized punctures, much finer, closer, and 
suberanulate in front, punctures somewhat roughened and subgranu- 
late on sides; median line scarcely elevated, indefinitely impressed at 
each side of middle on posterior third; lateral calli small or lacking; 
vestiture of fine, rather short hairs, definitely longer on sides. 
Elytra wider than pronotum, about 1.3 times as long as wide; 
widest behind middle; sides feebly sinuate on anterior two-thirds, 
moderately broadly rounded behind; surface rather weakly shining; 
striae rather narrow, strongly impressed, punctures small and incon- 
spicuous; interspaces wide, convex, second and fourth wider than 
others, densely granulate-punctate, granules fine and confused, as- 
perities less numerous, confused anteriorly but becoming uniseriate 
posteriorly on disk and sides; vestiture of short, moderately stout 
hairs. Declivity (pl. 38, fig. 1) with all interspaces convex and 
sparsely, finely asperate, first and third interspaces slightly more 
strongly convex and slightly wider than second, with asperities fewer 
in number and slightly smaller on second; each interspace with a 
sparse row of rather fine, erect setae arising from asperities, and more 
abundant, short, broad, scalelike hairs. Mesosternum precipitous in 
front, protuberant between coxae. 
Female.——Similar to male in habitus; wider between eyes, frontal 
rectangle about 0.8 as long as wide; densely, coarsely granulate- 
punctate, median carina almost lacking, usually represented only by 
a small epistomal tubercle; pronotum slightly shorter than in male, 
about 1.3 times as wide as long, not so strongly constricted in front; 
elytra with declivity very similar to that of male but with wider and 
more numerous scalelike hairs. 
Type locality.—Kagle, Alaska. 
