290 [ FEBRUARY, 
large, and a little less globose; varies in color from piceous to brownish-red. 
Thorax very finely punctured ; middle of the base distinctly margined. Elytra 
more finely not densely punctured, punctures posteriorly smaller and mixed with 
scratches; the sides and epipleure are smooth, the lateral stria deep. Pygidium 
impunctured; postpectus sparsely distinctly punctured; anterior tibic slightly 
dilated. 
5. A. simplex, oblongo-ovalis, convexus, rufus vel rufo-piceus, thorace 
subtiliter punctulato, basi medio marginato, elytris subtilius punctatis et postice 
rugosis, lateribus levibus, stria lateralisubtili, pygidio impunctato. Long. -025. 
Abreus simplex Lec., Bost. Journ. Nat. Hist. 5, 54, tab. 10, fig. 11. 
Abundant in Georgia, under bark. This species is more oval than A. con- 
formis, which it resembles very closely, so that the upper surface presents 
hardly any difference; the punctures of the elytra are, however, finer, and the 
posterior ruge more numerous. The lateral stria is very fine. The postpectus 
is smooth; with a very powerful lens, and in a particular light, may be seen a 
few very minute indistinct punctures. Anterior tibie scarcely dilated. 
6. A. basalis, oblongo-ovalis, modice convexus, piceus, parcius subtiliter 
punctatus, thorace basi medio marginato, elytris lateribus lvibus, stria laterali 
subtili, pygidio punctulato. Long. -025. 
Abreus basalis Lec., Annals of Lyceum of : New York, 5, 170: 
Gila and Colorado Rivers, California, under the bark BE Cottonwood. This 
species is very similar in form to A. simplex, but'is a little less convex. The 
more distinct punctuation of the thorax and the finely punctulate pygidium 
will at once distinguish it. The punctures of the elytra are less mixed with 
ruge posteriorly ; ‘the sides and epipleure are smooth; the lateral stria is fine, 
and the postpectus is sparsely punctured; the anterior tibie are scarcely 
dilated. 
From A. analis it differs by the less dense and more distinct punctuation, as 
weil as by the less deep lateral stria. 
(A. analis, piceus, modice convexus, leviter ovalis, thorace punctulato, 
basi medio marginato, elytris punctatis et postice subrugosis, fateribus levibus, 
stria laterali profunda, pygidio subtiliter punctulato. Long. -027. 
One specimen from Cuba, kindly sent by Don Felipe Poey. The distinctive 
characters are already pointed out under the preceding species.) 
7. A. politus, rufo-piceus, subovalis, modice convexus, levissimus, stria 
laterali subtili. Long. 025. 
Middle, Southern and Western States, abundant under stones. This species 
has entirely the form of A. simplex, but is destitute of punctures both above 
and beneath. The lateral stria is fine but distinct, the anterior tibie are 
scarcely dilated. Ihave distributed this insect under the name A. levigatus ; 
on account of Hister levigatus Pay/. I have thought it better to change this 
name. Paykull’s species is not an Abreus, as conjectured by my father, but is 
evidently a species of Cexrosternus Lec., and only differs from the Cuban 
C. levissimus Lec. (Proceed. Acad. 6, 40,) in having the pectus slightly punc- 
tured. It has not been seen since Paykull’s time, and is probably a West Indian 
species. Further comparison is necessary to determine whether Cerosternus 
should not be reunited to Tribalus; the rounded margin of the prosternum 
might be called a short broad lobe, while the lateral extension, although not 
lobed in its outline, might be but a very slight variation of the form described 
by Erichson. 
8. A. maritimus, oblongus fere doprecaaee niger, thorace subtilius, ely- 
tris sat dense punctatis, pyzidio levi. Long. -045. 
Abreus maritimus Le Conte, Ann. Lyc. of New York, 5,170. 
San Diego, California, under decomposing kelp on the ‘shores of the ocean. 
This species, in form and size, equals our common Plegaderus transversus, but 
has all the characters of the present genus. The thorax is finely punctured, the 
sides are scarcely rounded; the elytra are distinctly punctured, the punctures 
