March, 1896.] WlCKHAM, COLEOPTERA OF N. E. AMERICA. 
41 
Carolina, Georgia, Texas, Michigan, Wisconsin, Nebraska, Colorado. 
A. gibba Lee. —Oblong-oval, distinctly narrower in front, brown¬ 
ish or nearly piceous, shining, a feeble trace of bronze luster, legs 
always pale. Antennae pale rufo-testaceous. Thorax one and three- 
fourth times as wide at base as long, slightly narrowed anteriorly, sides 
regularly arcuate, base slightly narrowed, hind angles rectangular. 
Entire basal region usually punctate. Elytra distinctly wider at base 
than the thorax, sides arcuate, disc moderately deeply striate, striae 
finely but distinctly punctate, intervals flat, slightly convex near the 
base. Body beneath darker, shining. Length 6.5-7.5 mm. = .26- 
.30 in. 
Habitat: Lake Superior region, Colorado, Arizona, South Cali¬ 
fornia, New Jersey. 
A. harpalina Lee .—Form oblong, rufo-piceous or testaceous, 
moderately shining. Legs and antennae rufo-testaceous. Thorax at 
middle less than twice as wide as long, slightly narrowed in front, sides 
arcuate in front, oblique at basal half, hind angles sharply rectangular, 
basal region vaguely bi-impressed each side, this whole region punctate. 
Elytral base wider than that of thorax, disk moderately deeply striate, 
striae finely crenately punctured, intervals convex. Beneath usually 
paler than above, sides of metasternum and episterna very coarsely and 
closely punctate, the sides of first three ventral segments more sparsely 
so. Length 6.25-7 mm. = .25-. 28 in. 
Habitat: Utah and New Mexico. Reported from New Jersey 
under the synonym aeutangula Putz. 
A. subaenea Lee .—Form oblong-oval, narrowed anteriorly, pic¬ 
eous, faintly bronzed, shining. Antennae rufo-testaceous. Thorax 
about one half wider at base than long at middle, distinctly narrowed 
at apex, sides regularly arcuate, front angles prominent, hind angles 
rectangular. Elytra not wider at base than the thorax, striae moder¬ 
ately deep, finely crenately punctured, intervals convex. Beneath 
usually paler than above, sides of metasternum and first two ventral seg¬ 
ments with a few coarse punctures. Length 5-7 mm. = .20-.28 in. 
Habitat: Lake Superior Region, Nebraska, Colorado. 
A. rubrica Hald. —Oblong, moderately convex, rufo-testaceous 
to castaneous, shining in both sexes. Antennae pale. Thorax not 
twice as wide as long, very little narrowed in front, apex very feebly 
emarginate, sides regularly arcuate, hind angles usually very obtuse, disc 
convex, basal impressions very feeble, usually punctured, sometimes quite 
