Abstract
Crematogaster discinodis Emery, 1893 stat. rev. is raised to the species rank from the subspecies of Crematogaster subnuda. Crematogaster latipetiolata Karawaiew, 1935 stat. nov. is raised to the species rank from the subspecies of Crematogaster brunnea. The worker castes of C. discinodis and C. latipetiolata are redescribed based on nest series samples collected from Southeast Asia. We also provide information on the intraspecific morphological variations of C. discinodis and C. latipetiolata.
References
Akbar S. A., Bharti H. & Wachkoo A. A. 2023. Crematogaster bonnieae (Hymenoptera, Formicidae), a new acrobat-ant species from the Western Ghats, India. Annales Zoologici Fennici 60: 9–17.
Blaimer B. B. 2012. A subgeneric revision of Crematogaster and discussion of regional species-groups (Hymenoptera: Formicidae). Zootaxa 3482: 47–67. https://doi.org/10.11646/zootaxa.3482.1.3
Blaimer B. B. 2013. Taxonomy of the Crematogaster degeeri-species-assemblage in the Malagasy region (Hymenoptera: Formicidae). European Journal of Taxonomy 51: 1–64. https://doi.org/10.5852/ejt.2013.51
Bolton B. 1995. A New General Catalogue of the ants of the World. Cambridge, Massachusetts, 504 pp.
Bolton B. 2025. AntCat. An Online Catalog of the Ants of the World. https://antcat.org (Accessed 10 December 2025).
Brandão C. R. F. 2000. Major regional and type collections of ants (Formicidae) of the world and sources for the identification of ant species, pp. 172–185. In: Ants: Standard Methods for Measuring and Monitoring Biodiversity. (D Agosti, JD Majer, LE Alonso and TR Schultz, editors). Smithsonian Institution Press, Washington & London, 280 pp.
Chapman J. W. & Capco S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monographs of the Institute of Science and Technology. Manila 1: 1–327.
Emery C. 1893. Voyage de M. E. Simon aux îles Philippines (mars et avril 1890). Formicides. Annales de la Société Entomologique de France 62: 259–270.
Emery C. 1900. Formiche raccolte da Elio Modiglianii in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale 40: 661–722.
Emery C. 1922. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. Genera Insectorum 174B: 95–206.
Hadley A. 2010. Combine ZM (image stacking software). http://www.hadleyweb.pwp.blueyonder.co.uk/CZP/News.htm
Hosoishi S. 2015. Revision of the Crematogaster ranavalonae-group in Asia, with the descriptions of two new species (Hymenoptera, Formicidae). Journal of Hymenoptera Research 42: 63–92. https://doi.org/10.3897/JHR.42.8758
Hosoishi S., Maruyama M., Yamane Sk., Jaitrong W., Hashim R., Syaukani S., Itioka T., Sokh H., Meleng P. & Pham T. H. 2023. Multilocus phylogeny and historical biogeography of the Crematogaster inflata-group (Hymenoptera: Formicidae) in Southeast Asia. Zoological Journal of the Linnean Society 198(3): 901–922. https://doi.org/10.1093/zoolinnean/zlad005
Hosoishi S. & Ogata K. 2012. Revision of the Crematogaster brevis complex in Asia (Hymenoptera: Formicidae). Zootaxa 3349: 18–30. https://doi.org/10.11646/zootaxa.3349.1.2
Hosoishi S., Yamane Sk. & Ogata K. 2011. An evaluation of infraspecific names in Crematogaster (Paracrema) modiglianii Emery, 1900 based on nest series (Hymenoptera: Formicidae). Myrmecological News 14: 123–128. https://doi.org/10.25849/myrmecol.news_014:123
Karawajew V. 1935. Neue Ameisen aus dem Indo-Australischen Gebiet, nebst Revision einiger Formen. Treubia 15: 57–118.
Longino J. T. 2003. The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica. Zootaxa 151: 1–150. https://doi.org/10.11646/zootaxa.151.1.1
Sharaf M. R., Aldawood A. S. & Hita Garcia F. 2019. Review of the Arabian Crematogaster Lund (Hymenoptera, Formicidae), synoptic list, distribution, and description of two new species from Oman and Saudi Arabia. ZooKeys 898: 27–81. https://doi.org/10.3897/zookeys.898.37531
Wang W. Y., Soh E. J. Y., Yong G. W. J., Wong M. K. L., Guenard B., Economo E. P. & Yamane Sk. 2022. Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy. Asian Myrmecology 15: e015006. https://doi.org/10.20362/am.015006
Ward P. S. & Blaimer B. B. 2022. Taxonomy in the phylogenomic era: species boundaries and phylogenetic relationships among North American ants of the Crematogaster scutellaris group (Formicidae: Hymenoptera). Zoological Journal of the Linnean Society 194: 893–937. https://doi.org/10.1093/zoolinnean/zlab047
