March, 1896.] WiCKHAM, 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 narrow^ed 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 acutangida 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, usuallypunctured, sometimes quite 



