1853.] 291 



becoming slightly aciculate posteriorly ; there is a slight vestige of an obliqu-e 

 stria at the base ; the epipleuros are almost smooth, the lateral stria deep ; the 

 pectus and abdomen are scarcely punctured ; the pygidium is impunctured; the 

 anterior tibice are gradually and broadly dilated. 



9. A. exiguus, oblongus, fere depressus, niger, thorace densius, elytris 

 distinctius punctatis, pygidio punctulato. Long. -OS. 



Ahrccus exiguus Erichson, Klug's Jahrb., 208. 



AhrcEus aciculatus Le Conte, Bost. Journ. Nat. Hist. 5, 54 ; tab. vi. fig. 10. 



Abrcus ohliquus Le Conte, Bost. Journ. Nat. Hist. 5,54; tab. vi. fig. 12. 



Abundant in the Southern States, and found also at Fort Laramie, Nebraska. 

 Body oblong, subdepressed. Thorax densely, distinctly punctured, sometimes 

 slightly rugous. Elytra more coarsely punctured, posteriorly more or less 

 aciculate ; lateral stria deep. Postpectus and abdomen coarsely punctured. Py- 

 gidium finely but distinctly punctulate. Feet rufous, anterior tibiee very 

 slightly dilated. 



There is frequently a trace of an oblique stria at the base of the elytra ; the 

 concavity of the epipleur^ in this, as in some other species, causes the lateral 

 stria in some lights to appear double. 



Two specimens, which appear somewhat broader and more depressed than 

 ordinary, form Ahrcsiis ohliquus Lee, but after a very close examination, I can' 

 not find any sufficient distinction. By the thorax in the one described being 

 dislocated, so as to show the posterior edge, it was incorrectly described by my 

 father as margined at the base. 



A. a t om u s , rotundatus, fere depressus, rufus, thorace elytrisque aciculato- 

 punctatis, pygidio vix punctulato. Long. -OS. 



One specimen from Cuba, kindly sent by Don Felipe Poey. Body circular, 

 depressed, shining rufous. Head finely punctulate. Thorax and elytra coarsely 

 and densely punctured, punctures somewhat aciculate ; epipleurae / Pygidium 

 finely and obsoletely punctulate ; anterior tibiae not dilated. 



I am not able to make a satisfactory examination of the under surface, but the 

 form, color and punctuation are sufficient to separate it at once from the pre- 

 ceding species, to which alone it is allied. 



Bacamus Lee. 



Prosternum latum, postice truncatum, antice breviter lobatum, et late rotunr 

 datum, non striatum ; mandibulae subretractae ; scrobiculi antennales magni, 

 diffusi, ad medium thoracis partis inflexae siti ; antennae funiculo tenui, articulis 

 penultimis rotundatis, capitulo ovali modice compresso ; pygidium inflexum ; 

 tibiae anticae dilatatoe, posteriores angustae ; tarsi omnes 5-articulati. 



Although from the want of specimens for dissection, 1 am able to give but a 

 meagre description of this genus, the characters above stated will show the ne- 

 cessity of separating it from Abraeus, with which, from the size and form of the 

 body, the species might be confounded. The distinction between this genus and 

 Dendrophilus is however not so well defined ; for the present it can be said, that 

 the prosternum iri Dendrophilus is rounded posteriorly and elevated in the middle 

 and bistriate ; the mesosternum is emarginate ; the middle and posterior tibiae 

 are broadly dilated, and the pygidium is perpendicular. 



Paromalus has the prosternum similar to Dendrophilus. In both the mesos- 

 ternum is emarginate, while in Bacanius it is truncate. 



The species constituting the second division below, ought probably to form a 

 new genus, but the specimen has lost the antennae, and I therefore postpone the 

 farther consideration of the subject till new specimens were obtained. 



1. B. tantillus, rotundatus, convexus, rufus, nitidus, minws subtiliter 

 punctatus, elytris stria marginali antice abbreviata, pygidio punctulato. Long, 

 035. 



Middle and Southern States, under bark and in fungi. Body convex round, 

 almost globose, brownish red, shining. Head finely sparsely punctulate. Thorax 

 not densely, distinctly punctured. Elytra more coarsely punctured than the 



