1s 
1852.| 101 
27. A. biguttulus, magis elongatus, ater subnitidus, tenuiter pubescens, 
confertim punctatus, capite postice subtruncato, thorace longiusculo, ovato, 
elytris macula pone medium rotundata ferruginea. Long. :1d. 
Lec. An. Lyc. 5, 255. 
One specimen, San Francisco. A fine species, differing from the two pre- 
ceding by having the head less truneate behind, and the occiput not impressed ; 
frontal line none. The pubescence, though fine, is longer than in the preceding, 
and the thorax is extremely densely punctured. The punctures of the elytra 
are larger and not so dense. 
28. A. nigritulus, elongatus, niger, nitidus, tenuiter longius pubescens, 
capite parce punctulato, basi subtruncato, thorace elongato, postice subangus- 
tato, punctulato, elytris depressiusculis minus subtiliter punctatis, omoplatis 
prominulis. Long. -08. 
Lec. An. Lyc. 5, 154. 
San Francisco, California. The form of the body is altogether that of A. 
vicinus, but the pubescence has caused me to separate it from that group. 
The anterne are much thicker than in the preceding species, and the eyes are 
smaller, in both of which respects it agrees with A. vicinus. 
29. A. obscurellus, elongatus, fuscus, dense pubescens, capite punctu- 
‘lato basi truncato, linea frontali Javitenui, thorace longiusculo, ovato, confertim 
punctulato, elytris elongato-ellipticis, punctatis, pone medium infuscatis. 
Long. -08. ; 
Lec. An. Lyc. 5, 155. 
San Jose, California, abundant. A small elongate species, with the humeral 
angles of the elytra more rounded than usual. The elytra are transversely 
moderately convex, and a little flattened towards the base. The eyes are small, 
and the antenne tolerably thick. 
30. A latebrans, sub-elongatus, flavo-testaceus, parce pubescens, capite 
punctato, basi truncato, occipite breviter impresso, linea frontali tenui levi, 
thorace confertim punctulato, vix cordato, elytris basi emarginatis, punctatis, 
pone medium vix infuscatis, humeris valde rotundatis. Long. -08. 
One specimen, New York. Similar to the preceding, but less elongate. The 
thorax is narrowed and very slightly cylindrical at base, which causes it to appear 
somewhat cordate. ‘The elytra are a little flattened at base; the rounding of 
the humeral angles gives them a more convex lateral outline than usual. 
31. A. spretus, fuscus, longiusculus, pubescens, capite punctato, basi 
truncato, Jinea frontali integra levi, thorace confertim punctulato, trapezoideo, 
elytris basi emarginatis, punctatis, humeris rotundatis, elytrorum basi, antennis, 
pedibusque testaceis. Long. -08. 
New York and Boston. -A pale variety found on the Upper Mississippi. This 
species very nearly resembles the last, and when pale colored, can only be dis- 
tinguished by the want of the occipital channel; the thorax is not longer than 
wide, and not at all cylindrical at the base. The elytra are a little longer and 
more parallel. 
32, A. nanus, fuscus, elongatus, dense pubescens, capite punctato, postice 
truncato, medio levi, thorace rufo confertim punctulato, trapezoideo, postice 
subangustato, elytris confertim punctatis apice testaceis, basi rufis truncatis, 
humeris rotundatis, antennis pedibusque testaceis. Long. -U9—-08. 
Lec. An. Lyc. 5, 156. 
San Diego, California. Varies in color to pale yellow, without any fuscous 
marks. It is very closely allied to the preceding, but the punctures of the head 
are larger; the elytra not so coarsely but more densely punctured, and the 
humeral angles are less rounded. , 
33. A. bellulus, rufo-testaceus, subelongatus, pubescens, capite confertim 
punctato, linea frontali vix distincta, postice truncato, thorace trapezoideo, 
