Synonyms and other taxonomic changes
badly needs revision; reviewed in(1)
9 described spp. in our area (two reach Canada), >360 worldwide(2)
Light brown to deep brown, with appendages paler. Male antennomeres 4-10 each with a basal process that is as long as the segment. Pronotum granulate-punctate, with denticulate basal margin. Scutellum heart-shaped, notched anteriorly. Elytra feebly striate; intervals densely punctate.(3)
The antennae of females are serrate.
Key to several spp. in(4)
Species identification based almost exclusively on male genitalia and requires dissection
worldwide; most of e. US and adjacent Canada west ti MB-TX(2)