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SeasonalityAdult flight period is from July to October (Linsley 1962). IdentificationRobust, color black to brownish, dull. Head closely and distinctly, but not coarsely, punctuated. Clypeus is large and conspicuous, gula with a beard of dense pale hairs. Femora not clavate, abdoment with sternites very finely, closely punctured and densely clothed in a fine pubescence. Antennae reaching apical 1/3 of elytra with outer segments abruptly abbreviated, last 4 segments at most as long as 2 preceding segments together; pronotum very distinctly wider than long; angulated at sides; posterior tarsi with third segment cleft to middle. Apex distinctly emarginated. Females are slightly more robust than males, antennae reaching basal ¼ of elytra; fifth abdominal sternite as long as broad, apex rounded, length 17-31mm, males, 17-29mm (Linsley 1962). Overall, A. asperatus is most defined by the sharply abbreviated last 4 antennal segments, distinct asperites on the pronotum, and angular shape of the pits on the pronotum (Linsley 1962).

SeasonalityAdult flight period is June though August (Yanega 1996). IdentificationBody robust, dark brown to blackish, dull. Head closely punctuate, antennae to apical 1/3 of elytra, with segments 8-11 as long as the preceding 3 together. Gula with a dense beard of long pale hairs, pronotum distinctly wider than long, sides usually rounded, rarely angular. Abdomen with 5th sternite truncate or feebly emarginated at apex. Females more robust than males, abdomen with 5th sternite rounded at the apex (Linsley 1962). Eyes not hairy, pronotal surface irregular with a pair of deep pits; elytra with distinct ridges. The range extends westward to overlap with that of a similar species A. asparatus (LeConte), which is possibly only a variant of A. foveicollis (Yanega 1996; Linsley 1962). Overall, A. foveicollis is most defined by their nicely rounded pair of pronotal pits, rounded pronotal profile and gradually abbreviated antennal segments.

Common NameNew House Borer SeasonalityAdults fly in late summer and fall, July to October. IdentificationColor black, surface dull with short pale hairs; antennae with outer segments gradually abbreviated, last 4 segments nearly as long as the preceding segments together; pronotum usually rounded on the sides. Posterior tarsi with third segment cleft for about half its length, the apex of small fourth segment about even with apices of lobes; ocular setae absent or inconspicuous. Form, slender, elongate; pronotum not or little wider than long; gula finely rugulose, not distinctly punctuate, gula not bearded. Little sexual dimorphism; females more robust with antennae attaining nearly the middle of the elytra; females 15-25mm, males 12-23mm. Larvae yellowish white, about 40mm full grown; similar to Asemum striatum but have coarser pronotal asperities and numerous glabrous spots. A slender species, A. productus seems to be most easily distinguished from other species by the narrow pronotum with a longitudinal groove running between the pronotal pits, unabbreviated antennae and cribately punctured elytra (Linsley 1962).

SeasonalityAdult flight period is June through July (Linsley 1962). IdentificationColor brown; head with gula finely rugose; maxillary palpi with last segment triangular (Linsley 1962). Eyes hairy, pronotal surface smoother than A. foveicollis, with shallow depressions, elytra dull with weak ridges (Yanega 1996). Lenth 16-25mm (Linsley 1962). Attracted to u-v lights. There is a possible record of a sub-species, A. rusticus nubilus (LeConte), from Indiana; it is virtually indistinguishable, but slightly darker, with coarser sculpture beneath the head, slightly more projected mandibles, and a lightly more smoothly convex pronotum. The somewhat similar western species A. productus (LeConte), though their ranges do not seem to overlap, is distinctly more elongated and slender (Yanega 1996).