Necydalis diversicollis
Schaeffer, 1932
Necydalis diversicollis is a North American longhorned beetle in the Cerambycidae. The was described by Schaeffer in 1932. Taxonomic revision in 2024 elevated the former Necydalis californica to full species status, leaving N. diversicollis with a single subspecies (N. d. diversicollis). The Necydalis was reorganized into four subgenera, with North American species removed from the nominotypical subgenus.
Pronunciation
How to pronounce Necydalis diversicollis: /nɛˈkɪdəlɪs dɪˌvɜrsɪˈkoʊlɪs/
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Identification
Necydalis diversicollis can be distinguished from the newly elevated Necydalis californica by morphological differences that supported the taxonomic split; specific diagnostic characters would require examination of the full taxonomic revision. Members of the Necydalis are characterized by elongate bodies and reduced that expose most of the , giving them a -like appearance.
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Distribution
North America, with records from the United States and Canada. The occurs in western North America, though precise range boundaries have been revised following the elevation of N. californica to species status.
Similar Taxa
- Necydalis californicaFormerly treated as a of N. diversicollis, elevated to full status in 2024 based on morphological differences; occurs in California and adjacent regions.
- Necydalis copeiAnother North American in the same , described from Nevada in the same 2024 revision that reorganized the genus into subgenera.
More Details
Taxonomic History
Necydalis diversicollis was originally described with two : the nominotypical N. d. diversicollis and N. d. californica. A 2024 revision by Niisato, Heffern and Alten elevated N. californica to status and reorganized the into four subgenera. N. diversicollis now belongs to one of the newly described Nearctic subgenera (Neodalis, Heterodalis, or Mesodalis), though the specific subgeneric placement is not stated in the provided abstract.