First record of the genus Temnothorax Mayr, 1861 (Formicidae: Myrmicinae) in Hong Kong, with descriptions of two new species
Abstract
The ant genus Temnothorax Mayr, 1861 (Myrmicinae, Crematogastrini) is diverse with 498 species described. Species are distributed predominately within the northern hemisphere with species richness decreasing closer to the tropics; contrary to other ant genera overall. In Southeast Asia, richness is relatively low and knowledge on the genus remains fragmentary, likely due to poor sampling efforts compared to temperate regions. Here, using specimens from recent sampling efforts, Temnothorax is reported for the first time from the Hong Kong Special Administrative Region. Two new species, T. barrettoi Hamer & Guénard sp. nov. and T. haveni Lee, Hamer & Guénard sp. nov., are described based on qualitive morphological characters, with additional morphometric data also gathered. An updated key, as well as a distributional checklist of Temnothorax species from mainland China is provided. We suggest that the two new species are likely arboreal based on our collections, however, further arboreal sampling is necessary to confirm this hypothesis. We hope this study may spurn effort to generate further information on sub-tropical Chinese Temnothorax species.
References
Bengston S.E. & Dornhaus A. 2013. Colony size does not predict foraging distance in the ant Temnothorax rugatulus: a puzzle for standard scaling models. Insectes Sociaux 60: 93–96. https://doi.org/10.1007/s00040-012-0272-4
Bolton B. 1991. New myrmicine genera from the Oriental Region (Hymenoptera: Formicidae). Systematic Entomology 16: 1–13. https://doi.org/10.1111/j.1365-3113.1991.tb00571.x
Bolton B. 2022. Antcat. Available from https://www.antcat.org/catalog/429956?qq=Temnothorax [accessed 13 Jun. 2023].
Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus 25: 1–340.
Chang Y.D. & He D.-H. 2001. A taxonomic study of the ant genus Leptothorax from northwestern China. Journal of Ningxia Agricultural College 22 (2): 1–4. [In Chinese.]
Csősz S. & Fisher B.L. 2015. Diagnostic survey of Malagasy Nesomyrmex species-groups and revision of hafahafa group species via morphology based cluster delimitation protocol. ZooKeys 526: 19–59. https://doi.org/10.3897/zookeys.526.6037
Csősz S., Seifert B., Müller B., Trindl A., Schulz A. & Heinze J. 2014. Cryptic diversity in the Mediterranean Temnothorax lichtensteini species complex (Hymenoptera:Formicidae). Organisms Diversity & Evolution 14: 75–88. https://doi.org/10.1007/s13127-013-0153-3
Csősz S., Heinze J. & Mikó I. 2015. Taxonomic synopsis of the Ponto-Mediterranean ants of Temnothorax nylanderi species-group. PLoS ONE 10 (11): e0140000. https://doi.org/10.1371/journal.pone.0140000
Eguchi K., Bui T.V. & Yamane S. 2011. Generic synopsis of the Formicidae of Vietnam. Part 1 – Myrmicinae and Pseudomyrmecinae. Zootaxa 2878 (1): 1–61. https://doi.org/10.11646/zootaxa.2878.1.1
El-Shehaby M., Abd-el-Reheem A. & Heinze J. 2012. Determinants of worker reproduction in queenless colonies of the ant Temnothorax crassispinus (Karavaiev, 1926) (Hymenoptera: Formicidae). Myrmecological News 17: 21–26.
Fontanilla A.M., Nakamura A., Xu Z., Cao M., Kitching R.L., Tang Y. & Burwell C.J. 2019. Taxonomic and functional ant diversity along tropical, subtropical, and subalpine elevational transects in Southwest China. Insects 10: 128. https://doi.org/10.3390/insects10050128
Forel A. 1902. Myrmicinae nouveaux de l’Inde et de Ceylan. Revue suisse de Zoologie 10: 165–249. https://doi.org/10.5962/bhl.part.13792
General D.E.M. 2020. Vombisidris freyae, a new nocturnal arboreal ant species from the Philippines (Hymenoptera: Formicidae). Halteres 11: 32–35. https://doi.org/10.5281/zenodo.4026486
González J.A. 2021. Description of Temnothorax estel sp. nov. (Hymenoptera : Formicidae), with a review of the Iberian species of the sordidulus species-complex. Zootaxa 5005 (2): 145–160. https://doi.org/10.11646/zootaxa.5005.2.2
Guénard B., Shik J., Booher D., Lubertazzi D. & Alpert G. 2016. Extreme polygyny in the previously unstudied subtropical ant Temnothorax tuscaloosae (Hymenoptera: Formicidae), with implications for the biogeographic study of the evolution of polygyny. Insectes Sociaux 63: 543–551. https://doi.org/10.1007/s00040-016-0498-7
Guénard B., Weiser M.D., Gomez K., Narula N. & Economo E.P. 2017. The Global Ant Biodiversity Informatics (GABI) database: synthesizing data on ant species geographic distribution. Myrmecological News 24: 83–89. https://doi.org/10.25849/myrmecol.news_024:083
Harris R.A. 1979. A glossary of surface sculpturing. Occasional Papers in Entomology, State of California Department of Food and Agriculture 28: 1–31. https://doi.org/10.5281/zenodo.26215
Huang J.-H., Chen B. & Zhou S.-Y. 2004. A new species of the ant genus Leptothorax Mayr (Hymenoptera, Formicidae) from Hunan, China. Acta Zootaxonomica Sinica 29: 766–768.
Janicki J., Narula N., Ziegler M., Guénard B. & Economo E.P. 2016. Visualizing and interacting with large-volume biodiversity data using client-server web-mapping applications: the design and implementation of antmaps.org. Ecological Informatics 32: 185–193. https://doi.org/10.1016/j.ecoinf.2016.02.006
Kendrick R.C. & Barretto R.O. (eds) 2006. Tai Po Kau Headland Conservation Study and S.S.S.I. Proposal. C & R Wildlife, Lam Tsuen, Tai Po, Hong Kong. Available from https://www.researchgate.net/publication/275949904 [accessed 13 Jun. 2023].
Liu C., Fischer G., Hita Garcia F., Yamane S., Liu Q., Peng Y.Q., Economo E.P., Guénard B. & Pierce N.E. 2020. Ants of the Hengduan Mountains: a new altitudinal survey and updated checklist for Yunnan Province highlight an understudied insect biodiversity hotspot. Zookeys 978: 1–171. https://doi.org/10.3897/zookeys.978.55767
Mallon E., Pratt S. & Franks N.R. 2001. Individual and collective decision-making during nest site selection by the ant Leptothorax albipennis. Behavioral Ecology and Sociobiology 50: 352–359. https://doi.org/10.1007/s002650100377
Pisarski B. 1969. Myrmicidae und Formicidae. Ergebnisse der zoologischen Forschungen von Dr. Z. Kaszab in der Mongolei (Hymenoptera). Faunistische Abhandlungen (Dresden) 2 (29): 295–316.
Prebus M.M. 2017. Insights into the evolution, biogeography and natural history of the acorn ants, genus Temnothorax Mayr (Hymenoptera: Formicidae). BMC Evolutionary Biology 17: 250. https://doi.org/10.1186/s12862-017-1095-8
Prebus M.M. 2021a. Phylogenomic species delimitation in the ants of the Temnothorax salvini group (Hymenoptera: Formicidae): an integrative approach. Systematic Entomology 46: 307–326. https://doi.org/10.1111/syen.12463
Prebus M.M. 2021b. Taxonomic revision of the Temnothorax salvini clade (Hymenoptera: Formicidae), with a key to the clades of New World Temnothorax. PeerJ 9: e11514. https://doi.org/10.7717/peerj.11514
Radchenko A. 2004. A review of the ant genera Leptothorax Mayr and Temnothorax Mayr (Hymneoptera; Formicidae) of the Eastern Palaearctic. Acta Zoologica Academiae Scientiarum Hungaricae 50 (2): 109–137.
Ruzsky M. 1895. Faunistic investigations in east Russia 1. Contribution to the ant fauna of east Russia. 2. Zoological excursion in the Orenburg region in 1894. Trudy Obshchestva Estestvoispytatelei pri Imperatorskom Kazanskom Universitete 28 (5): 1–32. [In Russian.]
Schifani E., Prebus M.M. & Alicata A. 2022. Integrating morphology with phylogenomics to describe four island endemic species of Temnothorax from Sicily and Malta (Hymenoptera, Formicidae). European Journal of Taxonomy 833: 143–179. https://doi.org/10.5852/ejt.2022.833.1891
Seifert B. & Csősz S. 2015. Temnothorax crasecundus sp. n. – a cryptic Eurocaucasian ant species (Hymenoptera, Formicidae) discovered by Nest Centroid Clustering. ZooKeys 479: 37–64. https://doi.org/10.3897/zookeys.479.8510
Smith F. 1874. Descriptions of new species of Tenthredinidae, Ichneumonidae, Chrysididae, Formicidae, &c. of Japan. Transactions of the Entomological Society of London 1874: 373–409. https://doi.org/10.1111/j.1365-2311.1874.tb00867.x
Sendova-Franks A. & Franks N.R. 1994. Social resilience in individual worker ants and its role in division of labour. Proceedings Royal Society: Biological Sciences B 256: 305–309. https://doi.org/10.1098/rspb.1994.0085
Teranishi C. 1940. Works of Cho Teranishi. Memorial Volume. Kansai Entomological Society, Osaka.
Terayama M. 2009. A synopsis of the family Formicidae of Taiwan (Insecta Hymenoptera). Liberal Arts Bullutin Kanto Gakuen University 17: 81–266.
Terayama M. & Onoyama K. 1999. The ant genus Leptothorax Mayr (Hymenoptera: Formicidae) in Japan. Memoirs of the Myrmecological Society of Japan 1: 71–97.
Tozetto L., Chaul J., Boudinot B. & Lattke J. 2022. Review of the Leptogenys unistimulosa species group (Hymenoptera: Formicidae) with the description of a new Amazonian species. Revista Brasileira de Entomologia 66 (3): e20220045. https://doi.org/10.1590/1806-9665-rbent-2022-0045
Wang M., Xiao G. & Wu J. 1988. Taxonomic studies on the genus Tetramorium Mayr in China (Hymenoptera, Formicidae). [In Chinese.]. Forest Research 1: 264–274.
Wheeler W.M. 1927. A few ants from China and Formosa. American Museum Novitates 259: 1–4. Available from http://hdl.handle.net/2246/4195 [accessed 13 Jun. 2023].
Wheeler W.M. 1928. Ants collected by Professor F. Silvestri in China. Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scuola Superiore d’Agricoltura in Portici 22: 3–38. https://doi.org/10.5281/zenodo.25215
Wheeler W.M. 1929a. Ants collected by Professor F. Silvestri in Formosa, the Malay Peninsula and the Philippines. Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scuola Superiore d’Agricoltura in Portici 24: 27–64.
Wheeler W.M. 1929b. Some ants from China and Manchuria. American Museum Novitates 361: 1–11. Available from http://hdl.handle.net/2246/3980 [accessed 13 Jun. 2023].
Zhou S., Huang J., Yu D. & Liu Z. 2010. Eight new species and three newly recorded species of the ant genus Temnothorax Mayr (Hymenoptera: Formicidae) from the Chinese mainland, with a key. Sociobiology 56 (1): 7–26.
Copyright (c) 2023 Matthew T. Hamer, Roger H. Lee, Benoit Guénard
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