106 MR. HALDEMAN'S DESCRIPTIONS OF COLEOPTERA. 



A. siRiGATUS Say. J. Acad. iii. 212. Inhabits the Eastern, Middle, and Southern 

 States. Say found it as far west as the Rocky Mountains, and Dr. Le Conte at Lake 

 Superior. My brother, Lieut. Horace Haldeman, has sent me specimens from 

 Mexico collected at Jalapa last November. 



A. SPRETUS Hald. Short, shining black, polished, punctate ; feet and translucent 

 margins of the prothorax and elytra dull rufous ; frontal suture an elevated line 

 sometimes having a medial tubercle. Long. 1|, lat. | line. Middle States. 

 Head hemi-hexagonal, v\^idely emarginate anteriorly, margins reflexed, surface 

 finely punctured ; lateral margins rugosely punctate ; palpi and antennae flavous, 

 clava darker : pronotum smooth, convex, margined posteriorly and laterally, disc with 

 scattered punctures of varying size, the larger ones dilated : scutel smooth, medial 

 portion depressed : elytra with an indistinct tinge of rufous, becoming more apparent 

 at the margins ; striae fine, with faintly impressed punctures disappearing posteriorly, 

 and scarcely crenulating the interstices ; marginal stria as in A. curtus ; interstices 

 plane. The elytra and general appearance are as in A. terminalis. 



A. spRETULUs Hald. Shining blackish fuscous with a tinge of rufous ; beneath and 

 feet rufous ; pronotum sparsely punctured ; elytra crenulate-striate, the two 

 submarginal striae abbreviated at base. Long. 2, lat | line. Middle States. 

 Head hemi-hexagonal, auriculate, widely emarginate, margin rufous and reflexed ; 

 surface smooth, obsoletely rugose towards the margin, and punctate upon the posterior 

 margin : antennae fulvous : pronotum with the anterior margin and an indistinct 

 lateral spot (absent in a second individual) rufous; surface with scattered punctures, 

 which are largest posteriorly and laterally ; besides these, the entire surface is 

 regularly covered with minute punctures ; posterior and lateral margins reflexed, 

 anterior angles obtuse, not prominent : scutel smooth, with a rufous tinge : elytra with 

 the striae and crenulations distinct ; interstices scarcely convex, except posteriorly ; 

 margin and beneath rufous ; abdomen darker, and slightly punctate. 



A. (OxYOMUs) ABDiTUs HoM. Dull black, narrow, depressed ; head and 

 prothorax densely punctate ; elytra obtusely striate, margin of the intervals 

 minutely lineate-punctate. Long. 2, lat. | line. Middle States. Head hemi- 

 hexagonal, auriculate, margins convex and rufous; entire surface more minutely 

 punctured than the pronotum ; clypeus lato-emarginate, the emargination 

 terminated by a minute tooth ; antennae and maxillary palpi flavous, the latter 

 sub-securiform : pronotum densely punctured, punctures largest posteriorly and 

 laterally ; scabrous with approximate punctures laterally ; posterior and lateral 

 margins reflexed ; posterior angles very obtuse ; anterior angles scarcely projecting • 



