Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2021-01-29
Page range: 417–427
Abstract views: 90
PDF downloaded: 16

A taxonomic review of the coastal genus Iotarphia Cameron (Coleoptera: Staphylinidae: Aleocharinae) with a description of new species based on morphological and molecular characters

Department of Agricultural Biology, National Institute of Agricultural Sciences, Wanju-gun, 55365, South Korea
Honorary Research Associate, Queen Victoria Museum and Art Gallery, 2 Invermay Road, Launceston, Tasmania 7250, Australia
Department of Biology, Chungnam National University, Daejeon 34134, South Korea
Coleoptera Staphylinidae Aleocharinae Iotarphia new species species delimitation molecular characters


A taxonomic review of the marine littoral genus Iotarphia Cameron is presented. Three species are recognized, one of which is described as a new species (I. magna Song & Ahn, sp. n.) based on morphological and molecular characters. Genetic divergence of COI using uncorrected p-distance among Iotarphia species ranged from 10% to 11.6%, while intraspecific divergence ranged from 0% to 1.3%. All three species were strongly supported as a single lineage on both neighbor-joining and parsimony trees. The genus Iotarphia and I. australis Cameron are redescribed with illustrations of diagnostic characters. The female of I. rufobrunnea is characterized for the first time. A key and comparison table for similarities and differences among the species are presented.



  1. Ashe, J.S. (1984) Generic revision of the subtribe Gyrophaenina (Coleoptera: Staphylinidae: Aleocharinae) with a review of the described subgenera and major features of evolution. Quaestiones Entomologicae, 20, 129–349.

    Ashe, J.S. (2001) Aleocharinae, Staphylinidae Latreille, 1802. In: Newton, A.F., Thayer, M.K., Ashe, J.S. & Chandler, D.S. (Eds.), American Beetles. Vol. 1. Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia. CRC Press, Boca Raton, Florida, pp. 295–324 + 358–375 + 397–418.

    Cameron, M. (1943) New species of Staphylinidae (Col.) from Australia and New Guinea. The Annals and Magazine of Natural History, Series 11, 10, 336–354.

    Folmer, O., Hoeh, W., Black, M. & Vrijenhoek, R. (1994) Conserved primers for PCR amplification of mitochondrial DNA from different invertebrate phyla. Molecular Marine Biology and Biotechnology, 3, 294–299.

    Frank, J.H. & Ahn, K.-J. (2011) Coastal Staphylinidae (Coleoptera): A worldwide checklist, biogeography and natural history. ZooKeys, 107, 1–98.

    Goloboff, P.A. & Catalano, S.A. (2016) TNT version 1.5, including a full implementation of phylogenetic morphometrics. Cladistics, 32, 221–238.

    Hanley, R.S. & Ashe, J.S. (2003) Techniques for dissecting adult aleocharine beetles (Coleoptera: Staphylinidae). Bulletin of Entomological Research, 93, 11–18.

    Kimura, M. (1980) A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. Journal of Molecular Evolution, 16, 111–120.

    Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Molecular Biology and Evolution, 33, 1870–1874.

    Lee, S.-G., Osborn, A.W. & Ahn, K.-J. (2016) A new species of Iotarphia Cameron (Coleoptera, Staphylinidae, Aleocharinae) from Tasmanian seacoasts, Australia. ZooKeys, 632, 67–74.

    Lee, S.-G. & Ahn, K.-J. (2015). Psammopora Pace, a new synonym of Iotarphia Cameron (Coleoptera: Staphylinidae: Aleocharinae). The Coleopterists Bulletin, 69, 766–767.

    Osswald, J., Bachmann, L. & Gusarov, V.I. (2013) Molecular phylogeny of the beetle tribe Oxypodini (Coleoptera: Staphylinidae: Aleocharinae). Systematic Entomology, 38, 507–522.

    Pace, R. (2003) New or little known Aleocharinae from the Australian region (Coleoptera, Staphylinidae). Monografie del Museo regionale di Scienze naturali di Torino, 35, 111–186.

    Sawada, K. (1972) Methodological Research in the Taxonomy of Aleocharinae. Contributions from the Biological Laboratory, Kyoto University, 24, 31–59.

    Song, J.-H. & Ahn, K.-J. (2014) Species delimitation in the Aleochara fucicola species complex (Coleoptera: Staphylinidae: Aleocharinae) and its phylogenetic relationships. Zoologica Scripta, 43, 629–640.

    Song, J.-H., & Ahn, K.-J. (2018) Species trees, temporal divergence and historical biogeography of coastal rove beetles (Coleoptera: Staphylinidae) reveal their early Miocene origin and show that most divergence events occurred in the early Pliocene along the Pacific coasts. Cladistics, 34, 313–332.

    Song, J.-H., Yoo, I.-S., Ôhara, M. & Ahn, K.-J. (2018) Discovery of two new Diaulota Casey species (Coleoptera: Staphylinidae: Aleocharinae) from coastal Hokkaido, Japan based on morphological and molecular characters. Journal of Asia-Pacific Entomology, 21, 930–936.

    Song, J.-H., Lee, S.-G., Lee, J.-S. & Ahn, K.-J. (2019a) Independent origins of coastal colonization in the tribe Athetini (Coleoptera, Staphylinidae). Zoologica Scripta, 48, 337–348.

    Song, J.-H., Osborn, A.W., Elgueta, M. & Ahn, K.-J. (2019b) Phylogenetic placement and redescription of Aleochara blackburni Bernhauer & Scheerpeltz, 1926 (Coleoptera: Staphylinidae) from coastal Australia. Austral Entomology, 58, 76–84.

    Srivathsan, A. & Meier, R. (2012) On the inappropriate use of Kimura-2-parameter (K2P) divergences in the DNA-barcoding literature. Cladistics, 28, 190–194.