NOTES ON THE CLASSIFICATION OF NORTH-AMERICAN ANT-LIKE STONE BEETLES (COLEOPTERA, SCYDMAENIDAE)

The following changes in North American scydmaenid taxonomy are propos ed: 1) Taphroscydmus Casey is elevated to generic rank 2) Papusus Case y is removed from synonymy with Leptochromus Motschulsky, 3) Ascydmus Casey and Euthiodes Brendel are placed as junior synonyms of Euthiconu s Reitter and a lectotype specimen is designated for Ascydmus tener Ca sey, 4) Neladius Casey is removed from synonymy with Delius Casey and placed as a subgenus of Microscydmus Saulcy and Croissandeau, and Micr oscydmus caseyi O' Keefe is proposed as a replacement name for M. atom us (Casey), a junior homonym of M. atomus (Reitter), 5) Smicrophus Cas ey is placed as a subgenus of Euconnus, S. leviceps Casey is designate d as the type species for Smicrophus, and a lectotype specimen is desi gnated for S. leviceps, 6) Noctophus Casey and 7) Drastophus Casey are removed from synonymy with Euconnus Thomson and placed as subgenera o f Euconnus, 8) Xestophus Casey is removed from synonymy with Psomophus Casey and placed as a subgenus of Euconnus. In addition, new combinat ions are listed due to the elevation of Cheloniodum Strand, Brachyceps is Brendel, and Parascydmus Casey to generic rank, the placement of Ac holerops Casey as a junior synonym of Scydmaenus Latreille, and the pl acement of Opresus Casey as a junior synonym of Microscydmus. Connophr on Casey is considered a junior synonym of Napochus Thomson.