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Studies on Ramulus ussurianus (Bey-Bienko, 1960) (Phasmida: Phasmatidae)
Sergey Yu Storozhenko1, Taewoo Kim
1Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia.. storozhenko@biosoil.ru.
Zootaxa
|March 23, 2021
Summary
The phasmid genus Ramulus includes 159 species. This study confirms that three previously distinct species from Russia, Korea, and China are actually the same Ramulus species.
Area of Science:
- Entomology
- Taxonomy
- Zoology
Background:
- The phasmid genus Ramulus, belonging to the subfamily Clitumninae of Phasmatidae, comprises 159 species with a wide distribution across Asia.
- Three phasmid species were previously described from the Russian Far East, Korea, and Northeast China, initially placed in the genus Baculum before being transferred to Ramulus.
Purpose of the Study:
- To clarify the taxonomic status of phasmid species described from the Russian Far East, Korea, and Northeast China.
- To investigate the conspecificity of Ramulus ussurianus and related taxa from these regions.
Main Methods:
- Detailed examination of type specimens of Ramulus ussurianus.
- Analysis of additional material and descriptions of the relevant species.
- Comparative morphological analysis of specimens from Russia, Korea, and Northeast China.
Main Results:
- Specimens from Russia, Korea, and Northeast China previously described as distinct species are confirmed to be conspecific.
- The examination of type specimens and additional material supports the unification of these taxa under a single species within the genus Ramulus.
Conclusions:
- The taxonomic revision consolidates three previously recognized species into one, impacting the known distribution and diversity of the genus Ramulus.
- This finding highlights the importance of detailed specimen examination for accurate species delimitation in entomological research.
Keywords:
Phasmida