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 Key to species of the genus Cyphosterna Chevrolat, 1862 1. Integument black, each elytron with prominent submarginal and subsutural eburneous costae...... 2 — Integument black with dull greenish purple overtone, elytra black, without eburneous costae, each elytron with four prominent costae, submarginal costa joined to a shorter lateral one near apex ( Fig. 489–490, 498–499 ).................. C. atropurpureum (Chemsak and Noguera) , comb. nov. 2(1). Pronotum coarsely punctate with lateral margins of disc and ventral surface of body including prosternum clothed with dense, appressed golden pubescence; elytral apices tapered, narrowly rounded with minute sutural spine; pronotum of females black ( Fig. 478–488 ).................................................................. C. sinaloanum (Chemsak and Linsley) , comb. nov. — Pronotum less coarsely punctate, disc lacking dense, appressed golden pubescent margin, prosternum thinly pubescent without dense appressed golden pubescence; elytral apices obliquely emarginate; pronotum of females reddish with apical and basal margins narrowly black ( Fig. 459–475 ).................................................................. C. quadrilineatum Chevrolat