40 
Journal New York Entomological Society. [Voi. iv. 
A. erratica Sturm. —Elongate oval, aeneous, cupreous or nearly 
black, shining. Antennae piceous black, two basal joints often red. 
Elytra differing as noted in table. Length 6-7.5 mm - = .24-.30 in. 
Habitat: About as in the preceding, not coming farther south 
than Canada and Vermont. 
A. obesa Say. —Oblong-oval, narrower in front, piceous-black, 
shining, the elytra opaque in the female. Antennae ferruginous or 
brownish. Thorax about one-half broader than long, sides arcuate at 
apical half, then nearly parallel to base. Hind angles rectangular, disk 
moderately convex, basal foveae two, the outer deeper and with an ex¬ 
ternal carina. Basal region punctate, smoother at middle. Elytra 
striate, striae finely punctured and more deeply impressed at apex, in¬ 
tervals slightly convex $ , or flat 9 . Beneath piceous black, legs piceous 
or rufo-piceous. Length 9-12 mm. = .36-.48 in. 
Habitat: New York, District of Columbia, Indiana, Montana, 
Michigan, Idaho, Hudson Bay, Colorado, Nebraska, Utah, Oregon, 
Washington. 
A. remotestriata Dej. —Oblong-oval, moderately convex, brown¬ 
ish or very slightly piceous, males shining with faint bronze lustre, 
females dull. Antennae always rufo-testaceous. Thorax about one- 
half broader at base than long, slightly wider at middle than at base, 
sides arcuate, hind angles sharply rectangular, basal foveae double, shal¬ 
low, basal region sparsely, often very feebly, punctate. Elytra finely 
striate, striae smooth or very finely and feebly punctate, intervals flat in 
both sexes. Body beneath smooth, metathorax and abdomen darker, 
epipleurae paler. Legs always pale rufo-testacous. Length 6.5-8 mm. 
= .26-.32 in. A terrestris Lee., is synonymous. 
Habitat: New York, New Jersey, Minnesota, Wisconsin, Iowa, 
Montana, Idaho, Colorado, New Mexico, Canada, British Columbia, 
Washington, Oregon, Northern California. 
A. chalcea Dej. —More broadly oval and more convex than 
remotestriata, piceous, shining in both sexes, surface slightly bronzed. 
Antennae pale. Width of thorax at base not equal to twice the length, 
feebly narrowed anteriorly. Sides arcuate nearly from the base, hind 
angles rectangular, two foveae on each side, both rather large and deep, 
and coarsely punctured. Elytra finely sharply striate, striae not punc¬ 
tured, intervals flat. Beneath piceous black, legs rufo-testaceous. 
Length 6.5-7 mm. — .26-.28 in. 
Habitat: Massachusetts, New York, District of Columbia, North 
