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Issue: Vol. 5748 No. 1: 12 Jan. 2026
Type: Article
Published: 2026-01-12
DOI: 10.11646/zootaxa.5748.1.6
Page range: 113-119
Abstract views: 69
PDF downloaded: 5

Oncerochara bolitocharoides gen. et sp. nov., of the tribe Homalotini (Coleoptera: Staphylinidae: Aleocharinae) from Japan

Entomological Laboratory; Graduate School of Bioresource and Bioenvironmental Sciences; Kyushu University; Fukuoka; 819-0395 Japan
The Kyushu University Museum; Fukuoka; 812-8581 Japan
Coleoptera Bolitocharina East Asia rove beetle taxonomy rare species

Abstract

A highly distinctive member of the tribe Homalotini (Coleoptera: Staphylinidae: Aleocharinae) is described from Honshu, Japan, as a new genus and species, Oncerochara bolitocharoides Hashizume & Maruyama, gen. et sp. nov. This taxon is similar to the members of the genus Bolitochara Mannerheim, 1830, but can be clearly distinguished by a broad maxillary galea and clearly transverse pronotum. In particular, the shape of the galea is highly distinctive within the subtribe and may indicate a specialized adaptation for feeding. The species is known from only two specimens. This discovery highlights the hidden diversity of Japanese Aleocharinae and underscores the importance of investigating overlooked ecological niches to fully understand aleocharine biodiversity.

 

References

  1. Ashe, J.S. (1992) Phylogeny and revision of genera of the subtribe Bolitocharina (Coleoptera: Staphylinidae: Aleocharinae). University of Kansas science bulletin, 54 (10), 335–406. https://doi.org/10.5962/bhl.part.19642
  2. Ashe, J.S. (1993) Mouthpart modifications correlated with fungivory among aleocharine staphylinids (Coleoptera: Staphylinidae: Aleocharinae). In: Schaefer, C.W. & Leschen, R.A.B. (Eds.), Functional morphology of insect feeding. Thomas Say Publications in Entomology. Annals of the Entomological Society of America. Entomological Society of America, Lanham, Maryland, pp. 105–130. https://doi.org/10.4182/VKQM1275.1993.105
  3. Assing, V. (2021) New species and records of Leptusa from the Georgian Caucasus (Coleoptera: Staphylinidae: Aleocharinae). Beitraege zur Entomologie, 71 (2), 255–264. https://doi.org/10.21248/contrib.entomol.71.2.255-264
  4. Casey, T.L. (1906) Observations on the staphylinid groups Aleocharinae and Xantholinini, chiefly of America. Transactions of the Academy of Science of St. Louis, 16 (6), 125–435. https://doi.org/10.5962/bhl.title.48654
  5. Hashizume, T., Yamamoto, S. & Maruyama, M. (2023) Revision of the Genera Pseudatheta Cameron and Phymatura Sahlberg (Coleoptera, Staphylinidae, Aleocharinae) from Japan. Zootaxa, 5319 (1), 27–47. https://doi.org/10.11646/zootaxa.5319.1.2
  6. Heer, O. (1839) Fauna Coleopterorum Helvetica. Pars I. Fasc. 2. Orelii, Fuesslini et Sociorum, Turici, xii + 652 pp.
  7. Klimaszewski, J., Pace, R., Center, T.D. & Couture, J. (2010) A remarkable new species of Himalusa Pace from Thailand (Coleoptera, Staphylinidae, Aleocharinae): phytophagous aleocharine beetle with potential for bio-control of skunkvine-related weeds in the United States. ZooKeys, 35, 1–12. https://doi.org/10.3897/zookeys.35.329
  8. Kraatz, G. (1856) Naturgeschichte der Insecten Deutschlands. Erste Abtheilung Coleoptera. Zweiter Band. Lieferung 1 und 2. Nicolai, Berlin, viii + 376 pp.
  9. Mannerheim, C.G. von (1830) Précis d’un nouvel arrangement de la famille des brachélytres de l’ordre des insectes coléoptères. privately published, St. Petersburg, 87 pp.
  10. Maruyama, M. (2004) A permanent slide pinned under a specimen. Elytra, 32 (2), 276.
  11. Mulsant, E. & Rey, C. (1873) Histoire naturelle des Coléoptères de France. Brévipennes. Aléochariens (Suite) [Septième branche, myrmédoniaires. Part 1]. Deyrolle, Paris, 695 pp., pls. 1–5.
  12. Newton, A. (2025) StaphBase (version Aug 2022). In: Bánki, O., Roskov, Y., Döring, M., Ower, G., Hernndez Robles, D.R., Plata Corredor, C.A., Stjernegaard Jeppesen, T., Örn, A., Pape, T., Hobern, D., Garnett, S., Little, H., DeWalt, R.E., Ma, K., Miller, J., Orrell, T., Aalbu, R., Abbott, J. et al, Catalogue of Life. Version 13 February 2025. Catalogue of Life, Amsterdam. Available from: https://www.catalogueoflife.org/data/dataset/1204 (accessed 4 March 2025) https://doi.org/10.48580/dg9ld-3gk
  13. Orlov, I., Newton, A.F. & Solodovnikov, A. (2021) Phylogenetic review of the tribal system of Aleocharinae, a mega-lineage of terrestrial arthropods in need of reclassification. Journal of Zoological Systematics and Evolutionary Research, 59 (8), 1903–1938. https://doi.org/10.1111/jzs.12524
  14. Shibata, Y., Maruyama, M., Hoshina, H., Kishimoto, T., Naomi, S.-I., Nomura, S., Puthz, V., Shimada, T., Watanabe, Y. & Yamamoto, S. (2013) Catalogue of Japanese Staphylinidae (Insecta: Coleoptera). Bulletin of the Kyushu University Museum, 11, 69–218.
  15. Thomson, C.G. (1859) Skandinaviens Coleoptera, synoptiskt bearbetade. I. Berlingska Boktryckeriet, Lund, 290 pp. https://doi.org/10.5962/bhl.title.138677

How to Cite

Hashizume, T. & Maruyama, M. (2026) Oncerochara bolitocharoides gen. et sp. nov., of the tribe Homalotini (Coleoptera: Staphylinidae: Aleocharinae) from Japan. Zootaxa, 5748 (1), 113–119. https://doi.org/10.11646/zootaxa.5748.1.6