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Published: 2021-04-16

On the Baeocera Erichson (Coleoptera: Staphylinidae: Scaphidiinae) of Sabah, Malaysia, and a tale on mystified biodiversity

Ph. D., Muséum d'histoire naturelle, Geneva, SWITZERLAND
Canadian National Collection of Insects, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON KIA 0C6, Canada
biodiversity trends taxonomy insects shining fungus beetles Borneo


Quantitative attemps to assess species diversity in the absence of a robust taxonomy are questioned. In addition, the sampling methods may be a major source of uncertainty, as illustrated in a commented biodiversity study of the Coleoptera of Sabah. The Sabah members of the staphylinid genus Baeocera Erichson are reviewed and keyed, the following new species are described: B. omnigena Löbl sp. nov., B. rudis Löbl sp. nov., B. secreta Löbl sp. nov., B. sedata Löbl sp. nov., B. segregata Löbl sp. nov., B. seiugata Löbl sp. nov., B. semirufa Löbl sp. nov. Baeocera barbara Löbl, B. obliqua (Löbl), B. rufula (Löbl) and B. serendibensis (Löbl) are reported for the first time from Malaysia, B. doriae (Pic) and B. sarawakensis Löbl are new to Sabah and B. kinabalua Löbl is new to Sarawak.


Key words: biodiversity, trends, taxonomy, insects, shining fungus beetles, Borneo


  1. Assing V. & Schülke M. 2012. Band 4. Staphylinidae (exclusive Aleocharinae, Pselaphinae und Scydmaeninae). In: Freude H., Harde K.-W., Lohse A. & Klausnitzer B. (eds). Die Käfer Mitteleuropas. Zweite neubearbeitete Auflage. Heidelberg, Spektrum Akademischer Verlag, xii + 560 pp.

    Barberousse A. & Samadi S. 2013. Taxonomie dans la tourmente. Revue d’anthropologie des connaissances 7 (2): 411–431.

    Basset Y., Cizek L., Cuénoud P., Didham R. K., Guilhaumon F., Missa O., Novotny V., Ødegaard F., Roslin T., Schmidl J., Tishechkin A. K., Winchester N. N., Roubik D. W., Aberlenc H.-P., Bail J., Barrios H., Bridle J. R., Castaño-Meneses G., Corbara B., Curletti G., Duarte da Rocha W., De Bakker D., Delabie J. H. C., Dejean A., Fagan L. L., Floren A., Kitching R. L., Medianero E., Miller S. E., Gama de Oliveira E., Orivel J., Pollet M., Rapp M., Ribeiro S. P., Roisin Y., Schmidt J. B., Sørensen L. & Leponce M. 2012. Arthropod diversity in a tropical forest. Science 338, 14481.

    Boero F. 2010. The study of species in the era of biodiversity: A tale of stupidity. Diversity 2010(2): 115–126.

    Caley M. J., Fisher R. & Mengersen K. 2014. Global species richness estimates have not converged. Trends in Ecology and Evolution 29(4): 187–188.

    Cameron B. D. 2005. Trends in the usage of ISI bibliometric data: uses, abuses, and implications. Libraries and the Academy 5(1): 105–125.

    Cheng S. & Kirton L. G. 2007. Overview of insect biodiversity in Peninsular Malaysia. Pp. 121–128. In: Status of Biological diversity in Malaysia & threat assessment of plant species in Malaysia. Forest Research Institute Malaysia, Kepong.

    Chung Y. C. A., Eggleton P., Speight M. R., Hammond P. M. & Chey V. K. 2001. The diversity of beetle assemblages in different habitat types in Sabah, Malaysia. Bulletin of Entomological Research [2000] 90: 475–496.

    Costello M. J., Wilson S. & Houlding B. 2012. Predicting total global species richness using rates of species description and estimates of taxonomic effort. Systematic Biology 61: 871–883.

    Davis A.J. 2000. Species richness of dung-feeding beetles (Coleoptera: Aphodiidae, Scarabaeidae, Hyposoridae) in tropical rainforest at Danum Valley, Malaysia. The Coleopterists Bulletin 54(2): 221–231.[0221:SRODFB]2.0.CO;2

    De Bruyn M., Stelbrink B., Morley R. J., Hall R., Carvalho G. R., Cannon C. H., van den Bergh G., Meijaard E., Metcalfe I. & Boitani L. 2014. Borneo and Indochina are major evolutionary hotspots for Southeast Asian biodiversity. Systematic Biology 63 (6): 879–901.

    Fierroz-López H.E. 2010. Description of two new species of Baeocera Erichson (Coleoptera: Staphylinidae: Scaphidiinae) from Mexico. Journal of the Kansas Entomological Society 83: 201–207.

    Fleishman E., Noiss R.F. & Nonn B. R. 2006. Utility and limitations of species richness metrics for conservation planning. Ecological Indicators 6: 543–553.

    Franz H. 1980a. Scydmaenidae (Coleoptera) von der Elfenbeinküste, gesammelt von J. Decelle, Tervuren, und I. Löbl, Genf. I. Gattung Euconnus Thomson. Revue suisse de Zoologie 87(2): 359–429.

    Franz H. 1980b. Scydmaenidae (Coleoptera) von der Elfenbeinküste, gesammelt von J. Decelle, Tervuren, und I. Löbl, Genf. II. Gattungen Microscydmus Saulcy & Croiss. und Scydmaenus Latr. Revue suisse de Zoologie 87(3): 671–709.

    Gaston K. J. & O’Neill M. A. 2004. Automated species identification: why not? Philosophical Transactions of the Royal Society of London B 359: 655–667.

    Giachino P. M. 2003. New Anillina (Coleoptera, Carabidae, Bembidiini) of the Oriental Region. Pp. 21–51. In: Cuccodoro G. & Leschen R.A.B. (eds): Systematic of Coleoptera: papers celebrating the retirement of Ivan Löbl. Memoirs on Entomology, International 17: [6] + 955 pp.

    Godfray H. C. J. 2007. Linnaeus in the information age. Nature 446: 259–260.

    Hammond P. M. 1990. Insect abundance and diversity in the Dumago-Bone National Park, North Sulawesi, with special reference to the beetle fauna of lowland rainforest in the Toraut region. Pp. 197–254. In: Knight W.J. & Holloway J.D. (eds): Insects and the rainforests of South East Asia (Wallacea). The Royal Entomological Society of London, iv + 343 pp.

    Hammond P. M. 1992. Species Inventory. Pp. 17–39. In: Groombridge B. (ed.): Global biodiversity, Status of the Earth’s living resources. Chapman & Hall, London, 585 pp.

    Hebert P. D. N., Cywinska A., Ball S. L. & de Waard J. R. 2003. Biological identifications through DNA barcodes. Proceedings of the Royal Society of London B 270: 313–322.

    Kemp C. 2015. The endangered dead. Nature 518: 292–294.

    Krell F.-T. 2000. Impact factors aren’t relevant to taxonomy. Nature 405: 507–508.

    Larsen B. B., Miller E. C., Rhodes M. K. & Wiens J. J. 2017. Inordinate fondness multiplied and redistributed: the number of species on Earth and the new pie of life. The Quarterly Review of Biology 92(3): 229–265.

    Lawrence J. F. & Newton A. F. Jr. 1980. Coleoptera associated with the fruiting bodies of slime molds (Myxomycetes). The Coleopterists Bulletin 34: 129–143.

    Lawrence P. A. 2007. The mismeasurements of science. Current Biology 17(15): 583–585.

    Lipscomb D., Platnick N. & Wheeler Q. 2003. The intellectual content of taxonomy: a comment on DNA taxonomy. Trends in Ecology and Evolution 18(2): 65–66.

    Löbl I. 1971. Scaphidiidae von Ceylon (Coleoptera). Revue suisse de Zoologie 78: 937–1006.

    Löbl I. 1973. Neue orientalische Arten der Gattung Eubaeocera Cornell (Coleoptera, Scaphidiidae). Mitteilungen der Schweizerischen entomologischen Gesellschaft 46: 157–174.

    Löbl I. 1979. Die Scaphidiidae (Coleoptera) Südindiens. Revue suisse de Zoologie 86: 77–129.

    Löbl I. 1982. Sur l’identité de trois «Amalocera » de Bornéo (Coleoptera, Scaphidiidae). Revue suisse de Zoologie 89: 789–795.

    Löbl I. 1987. Scaphidiidae (Coleoptera) nouveaux de Bornéo. Revue suisse de Zoologie 94: 85–107.

    Löbl I. 1990. Review of the Scaphidiidae (Coleoptera) of Thailand. Revue suisse de Zoologie 97: 505–621.

    Löbl I. 2012. On the Scaphisomatini (Coleoptera: Staphylinidae: Scaphidiinae) of the Philippines, III: the genus Baeocera Erichson. Revue suisse de Zoologie 119: 351–383.

    Löbl I. 2018a. Coleoptera: Staphylinidae: Scaphidiinae. World Catalogue of Insects. Volume 16. Brill, Leiden/Boston, xvi + 418 pp.

    Löbl I. 2018b. Assessing biotic diversity: The glorious past, present, and the uncertain future. Bulletin of the Entomological Society of Malta 10: 5–15.

    Löbl I. & Leschen R. A. B. 2003. Scaphidiinae (Insecta: Coleoptera: Staphylinidae). Fauna of New Zealand 48: 94 pp.

    Locey K. J. & Lennon J. T. 2016. Scaling laws predict global microbial diversity. Proceedings of the National Academy of Sciences of the United States of America 113: 5970–5975.

    May R. M. 1988. How many species are there on earth? Science, New series 241 (4872): 1411–1449.

    Minelli A. 2019. Chapter 11. Biodiversity, Disparity and Evolvability. Pp. 233–246. In: Casetta et al. (eds): From assessing to conservation biodiversity. History, philosophy and theory of the Life Science 24.

    Mora C., Tittensor D. P., Adl S., Simpson A. G. B. & Worm B. 2011. How many species are there on earth and ocean? Plos Biology 9 (8): e1001127.

    Morse D. R., Stork N. E. & Lawton J. H. 1988. Species number, species abundance and body length relationships of arboreal beetles in Bornean lowland rain forest trees. Ecological Entomology 13: 25–37.

    Newton A..F. 1984. Mycophagy in Staphylinidae (Coleoptera). Pp. 302–353. In: Wheeler Q. & Blackwell M. (eds): Fungus/insect relationships. Perspectives in ecology and evolution. Columbia University Press, New York, 514 pp.

    Novotný V. & Miller S. E. 2014. Mapping and understanding the diversity in the tropics: past achievements and future directions. Austral Entomology 53(3): 259–267.

    Pic M. 1920. Scaphidiides nouveaux de diverses origines. Annali del Museo civico di Storia naturale di Genova (3) 9: 93–97.

    Pinto A. P., Mejdalani G., Mounce R., Silveira L. F. & Rafael J. A. 2021. Are publications on zoological taxonomy under attack? Royal Society Open Science 8: 201617.

    Puthz V. 1988. Die Steninen von Borneo II (Coleoptera, Staphylinidae). Neue und alte Arten, vorwiegend aus der Ausbeuten des Genfer Naturhistorischen Museums. 218. Beitrag zur Kenntnis der Steninen. Revue suisse de Zoologie 95: 631–679.

    Raupach M. J. 2020. Hybride und unbekannte Arten: Neues aus der Wasserwanzenwelt Deutschlands (Heteroptera: Gerromorpha, Nepomorpha. Nachrichtenblatt der Bayerischen Entomologen 69: 100–102.

    Redtenbacher L. 1847–1849. Fauna Austriaca. Die Käfer. Nach der analytischen Methode. Carl Gerold, Wien, xxvii + 883 pp. + 2 pls.

    Schubert E. 2012. Use and misuse of the Impact Factor. Systematics and Biodiversity 10(4): 391–394.

    Seberg O., Humphries C. J., Knapp S., Stevenson D. W., Petersen G., Sharff N. & Andersen N. M. 2003. Shortcuts in Systematics? A commentary on DNA-based taxonomy. Trends in Ecology and Evolution 18(2): 63–65.

    Smetana A. 2018. Review of the genera Agelosus Sharp, 1889, Apostenolinus Bernhauer, 1934 and Apecholinus Bernhauer, 1933 (Coleoptera: Staphylinidae: Staphylinini: Staphylinina). Zootaxa 4471: 201–244.

    Stork N. E. 1988. Insect diversity: facts, fiction and speculation. Biological Journal of the Linnaean Society 35: 321–337.

    Stork N. E. 1993. How many species are there? Biodiversity and Conservation 2: 215–232.

    Stork N. E. 2018. How many species of insects and other terrestrial arthropods are there on Earth? Annual Review of Entomology 63: 31–45.

    Stork N. E., McBroom J., Gely C. & Hamilton A. J. 2015. New approaches narrow global species estimates for beetles, insects, and terrestrial arthropods. Proceedings of the National Academy of Sciences of the United States of America 112: 7519–7523.

    Švec Z. 2011. New and less known Agathidiini and Pseudoliodini (Coleoptera: Leiodidae: Leiodinae) from China, Nepal and India. Studies and Reports, Taxonomical Series 7: 415–439.

    Tautz D., Arctander P., Minelli A. & Thomas R. H. 2002. DNA points the way ahead in taxonomy. Nature 418: 479.

    Ward P. S. 1987. Distribution of the introduced Argentine ant (Iridomyrmex humilis) in natural habitats of the lower Sacramento Valley and its effects on the indigenous ant fauna. Hilgardia 55: 1–16.

    Wheeler Q. 2020. A taxonomic renaissance in three acts. Megataxa 1(1): 4–8.

    Will K. W. & Rubinoff D. 2004. Myth of the molecule: DNA barcodes for species cannot replace morphology for identification and classification. Cladistics 20: 47–55.

    Zhou Y-L., Zhou H.-Z., Ślipiński S. A. & Beutel R. G. 2019. Evolution of a hyper-complex intromittent organ in rove beetles – the endophallus of Xantholinini (Staphylinidae: Coleoptera). Zoological Journal of the Linnaean Society 20: 1–19.