Center for Systematic Entomology, Gainesville, Florida


Date of this Version



Otto RL. 2022. New state records for 33 species of Nearctic false click beetles (Coleoptera: Eucnemidae). Insecta Mundi 0934: 1–13.


Published on May 27, 2022 by Center for Systematic Entomology, Inc. P.O. Box 141874 Gainesville, FL 32614-1874 USA

Copyright held by the author(s). This is an open access article distributed under the terms of the Creative Commons, Attribution Non-Commercial License


New state records for 33 species of Eucnemidae (Coleoptera) are reported from the eastern United States based on the examination and identifications of specimens from four institutional and personal collections over the past several years. Images of 12 eucnemid species are also provided.

Recently, opportunities were presented to identify more than 880 Eucnemidae from four institutional and personal collections. Most of the specimens came from the Carnegie Museum of Natural History and were collected during the national bark beetle surveys conducted by the United States Department of Agriculture. The survey has been instrumental in providing more state records of Eucnemidae than any national surveys conducted in the past. This material has served to close many distributional gaps and has uncovered interesting range extensions for a number of species previously thought to be endemic within a particular state or restricted to a certain region. The national bark beetle survey has led to a far more accurate distributional picture for Eucnemidae as a whole in eastern United States. As these surveys continue, many additional distributional records are expected to be discovered. Here, new distributional records for 33 species of Eucnemidae are presented based on the specimens studied and identified from submitted images, private correspondences as well as loans from several museums and private collections.