A Review of the Genus Necydalis Linnaeus (Coleoptera: Cerambycidae) from North America with Proposed Subgeneric Reclassification

Authors

Daniel Heffern, Houston, Texas, United StatesFollow
Tatsuya Niisato, Tokyo, JapanFollow
Ronald Alten, Alta Loma, California, United StatesFollow

ORCID IDs

Heffern 0000-0003-2263-6643

Niisato 0000-0003-1422-4446

Document Type

Article

Date of this Version

2025

Citation

Insecta Mundi (2025) 1103

February 28, 2025

ZooBank registration: urn:lsid:zoobank.org:pub:0EB1E122-BFE7-464A-BDA2-A7A0E9A48BE5

Comments

Copyright 2025, the authors. Open access

License: CC BY-NC 3.0

Abstract

All North American species of Necydalis Linnaeus, 1758 (Coleoptera: Cerambycidae) are removed from the nominotypical subgenus with species allocated into four subgenera: Neodalis Niisato new subgenus, Heterodalis Niisato new subgenus, Mesodalis Niisato new subgenus and Necydalisca Plavilstshikov, 1936. Neodalis and Heterodalis are endemic to the Nearctic, whereas Mesodalis and Necydalisca also occur in the Palearctic. Necydalis (Neodalis) copei Niisato, Heffern and Alten new species is described from Nevada, USA. Necydalis californica Linsley, 1940 new status is elevated from a subspecies of N. diversicollis Schaeffer, 1932 to full species status. Male terminalia of all species are described and illustrated in detail. A key to North American subgenera and species is provided. Distributions, larval host plants and biological notes are presented.