Revision of trachyderines related to Sphaenothecus from North America with description of three new genera, and new species of Lophalia Casey, 1912, Mannophorus LeConte, 1854, and Ischnocnemis Thomson, 1864 (Coleoptera: Cerambycidae: Cerambycinae: Trachyderini) Author Eya, Bryan K. California Academy of Sciences 55 Music Concourse Drive, Golden Gate Park, San Francisco, CA 94118 USA text Insecta Mundi 2024 2024-07-26 2024 61 1 94 journal article 10.5281/zenodo.14662132 1942-1354 14662132 5671A77B-2ECB-445F-8F61-246A9E442CDE Paramannophorus Eya , new genus Type species. Ischnocnemis skillmani Chemsak and Hovore in Eya 2010 A new genus Paramannophorus is created for Ischnocnemis skillmani Chemsak and Hovore , and the following new combination is proposed: Paramannophorus skillmani (Chemsak and Hovore, 2010) , new combination . Description. Form small, stout, sides subparallel. Head with front short, declivous, mid-cranial sulcus (median line) narrow, canaliculate, extending over from postclypeus to posterior margin of antennal tubercles, each side above postclypeus and below antennal insertions with a small pit, frontoclypeal sulcus transversely excavated in middle between pits; postclypeus declivous, subparallel with front; genae short, narrow, triangular, base of mandibles almost contiguous with anterior margins of lower eye lobes; palpi short, subequal, last segments not expanded, apex truncate or rounded, dorsoventrally flattened, outer margin vaguely impressed; mandibles simple, sides arcuate from base to apex, dorsum with outer edge vaguely impressed; eyes moderately large, finely faceted, upper lobes small, well separated, lower lobes large; antennal tubercles divergent; integument between tubercles impressed; antennae elongate, 11-segmented, 11 th antennomere slender, vaguely to non-appendiculate. Pronotum broader than long, narrower than base of elytra at humeri, sides obtusely angulate; apex narrower than base, apical margin not elevated on dorsum, narrowly constricted behind with lateral collar-like projection absent; base margined with sides broadly constricted; prosternum with intercoxal process level with coxae, narrower than coxal cavities, procoxae wide open behind; mesosternum with intercoxal process lying below top of coxae, gradually declivous anteriorly; posterior-lateral margins lobed and slightly overlapping mesocoxae. Scutellum triangular, as broad as long. Elytra with longitudinal, glabrous costae or ivory-like vittae; apices truncate, outer angles dentate. Legs slender, moderately short; metafemora falling far short of elytral apices in both sexes; metatarsomeres explanate, tarsomere I shorter than tarsomeres II and III combined. Abdomen normally segmented. Etymology. The name Paramannophorus refers to ( Para -, closely resembling or near) and Mannophorus . Paramannophorus with the Latinized suffix “- phorus ” is a masculine genus name.