Leptogenys myops

Leptogenys myops
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Ponerinae
Tribe:	Ponerini
Genus:	Leptogenys
Species:	L. myops
Binomial name
Leptogenys myops (Emery, 1887) Specimen Labels
Synonyms
Pseudoponera butteli Forel, 1913

At a Glance

• Ergatoid queen

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 5.21° to -6.468919°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia (type locality), Malaysia, Singapore.
Oriental Region: Thailand.

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Castes

(Ito 1997) - Ergatoid queens of L. myops are exceptionally large in body size (head width 1.18 mm) relative to workers (head width 0.75 mm); other Oriental species show similar head widths between castes. L. myops queens have 32-34 ovarioles per ovary while workers have 3 ovarioles per ovary. In contrast, other species have same ovariole numbers between castes.

Large ergatoid queen of L. myops surrounded by workers (including callows with lighter pigmentation) and brood. Photo by Fuminori Ito.

Images from AntWeb

Syntype of Leptogenys myops. Worker. Specimen code casent0903952. Photographer Will Ericson, uploaded by California Academy of Sciences.	Owned by MSNG, Genoa, Italy.

Syntype of Pseudoponera butteli. Worker. Specimen code casent0907293. Photographer Z. Lieberman, uploaded by California Academy of Sciences.	Owned by MHNG, Geneva, Switzerland.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• myops. Lobopelta myops Emery, 1887b: 432 (w.) INDONESIA (Java).
  • Karavaiev, 1925c: 283 (q.); Karavaiev, 1926d: 421 (m.); Imai, Kubota, et al. 1985: 46 (k.); Tjan, Imai, et al. 1986: 57 (k.).
  • Combination in Leptogenys: Emery, 1900d: 671.
  • Senior synonym of butteli: Esteves & Fisher, 2021: 107.
• butteli. Pseudoponera butteli Forel, 1913k: 8, fig. B (w.) INDONESIA (Java).
  • Combination in Pachycondyla: Brown, in Bolton, 1995b: 303.
  • Combination in Euponera: Schmidt & Shattuck, 2014: 87.
  • Junior synonym of myops: Esteves & Fisher, 2021: 107.

Description

Karyotype

• n = 24, 2n = 48 (Indonesia; Malaysia; Sarawak) (Goni et al., 1982; Imai et al., 1983; Imai et al., 1985; Tjan et al., 1986; Mariano et al., 2015) (in Gona et al. 1982 as Leptogenys sp.2).

References

• Chen, C., Chen, Z., Xu, Z., Fu, Q., Fu, L. 2024. Two new ant species of the genus Leptogenys (Hymenoptera, Formicidae) from Hainan, China, with a key to the known Chinese species. ZooKeys, 1195, 199–217 (doi:10.3897/zookeys.1195.115889).
• Emery, C. 1887e. Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia (continuazione e fine). [part]. Ann. Mus. Civ. Stor. Nat. 25[=(2)(5): 427-432 (page 432, worker described)
• Emery, C. 1900d. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. [part]. Ann. Mus. Civ. Stor. Nat. 40[=(2(20): 689-720 (page 671, Combination in Leptogenys)
• Esteves, F.A., Fisher, B.L. 2021. Corrieopone nouragues gen. nov., sp. nov., a new Ponerinae from French Guiana (Hymenoptera, Formicidae). ZooKeys 1074, 83–173 (doi:10.3897/zookeys.1074.75551).
• Imai, H. T.; Kubota, M.; Brown, W. L., Jr.; Ihara, M.; Tohari, M.; Pranata, R. I. 1985. Chromosome observations on tropical ants from Indonesia. Annu. Rep. Natl. Inst. Genet. Jpn. 35: 46-48 (page 46, karyotype described)
• Ito F. 1997. Colony composition and morphological caste differentiation between ergatoid queens and workers in the ponerine ant genus Leptogenys in the Oriental tropics. Ethology Ecology Evolution 9:335–343.
• Karavaiev, V. 1925c. Ponerinen (Fam. Formicidae) aus dem Indo-Australischen Gebiet. (Schluss). Konowia 4: 276-296 (page 283, queen described)
• Karavaiev, V. 1926d. Ameisen aus dem Indo-Australischen Gebiet. Treubia 8: 413-445 (page 421, male described)
• Mariano, C.S.F., Santos, I.S., Silva, J.G., Costa, M.A., Pompolo, S.G. 2015. Citogenética e evolução do cariótipo em formigas poneromorfas. In: Delabie, J.H.C., Feitosa, R.M., Serrao, J.E., Mariano, C.S.F., Majer, J.D. (eds) As formigas poneromorfas do Brasil, 1st edn. Ilhéus, Brasil, pp 102–125 (doi:10.7476/9788574554419.0010).
• Satria, R., Nugraha, F.A.D., Achyar, A., Zulyetti, D., Eguchi, K. 2024, Description of the male caste of Leptogenys borneensis (Hymenoptera, Formicidae), with its first discovery in Sumatra. Zoodiversity 58 (1), 19-26 (doi:10.15407/zoo2024.01.19).
• Tjan, K. N.; Imai, H. T.; Kubota, M.; Brown, W. L., Jr.; Gotwald, W. H., Jr.; Yong, H.-S.; Leh, C. 1986. Chromosome observations of Sarawak ants. Annu. Rep. Natl. Inst. Genet. Jpn. 36: 57 (page 57, karyotype described)
• Wang, W.Y., Soh, E.J.Y., Yong, G.W.J., Wong, M.K.L., Benoit Guénard, Economo, E.P., Yamane, S. 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 (doi:10.20362/am.015006).
• Yamane, S., Tanaka, H.O., Hasimoto, Y., Ohashi, M., Meleng, P., Itioka, T. 2021. A list of ants from Lambir Hills National Park and its vicinity, with their biological information: Part II. Subfamilies Leptanillinae, Proceratiinae, Amblyoponinae, Ponerinae, Dorylinae, Dolichoderinae, Ectatomminae and Formicinae. Contributions from the Biological Laboratory, Kyoto University 31, 87–157.

References based on Global Ant Biodiversity Informatics

• Bakhtiar E.Y., and S.L. Chiang. 2010. Leptogenys ants (Hymenoptera: Formicidae: Ponerinae) of Sabah. Serangga 15(1-2): 37-55.
• Chantarasawat N., D. Sitthicharoenchai, C. Chaisuekul, and C. Lekprayoon. 2013. Comparison of Ants (Hymenoptera: Formicidae) Diversity in Dry Dipterocarp and Mixed-Deciduous Forests at Sri Nan National Park, Northern Thailand. Tropical Natural History 13(1): 1-19.
• Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
• Emery C. 1887. Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia (continuazione e fine). [concl.]. Ann. Mus. Civ. Stor. Nat. 25(5): 427-473.
• Emery C. 1911. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118: 1-125.
• Emery C. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale 40: 661-722.
• Emery, C.. "Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia (continuazione e fine)." Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova) (2) 5, no. 25 (1887): 427-473.
• Emery, C.. "Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei." Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova) (2) 20, no. 40 (1900): 661-722.
• Forel A. 1905. Ameisen aus Java. Gesammelt von Prof. Karl Kraepelin 1904. Mitt. Naturhist. Mus. Hambg. 22: 1-26.
• Forel A. 1913. Wissenschaftliche Ergebnisse einer Forschungsreise nach Ostindien ausgeführt im Auftrage der Kgl. Preuss. Akademie der Wissenschaften zu Berlin von H. v. Buttel-Reepen. II. Ameisen aus Sumatra, Java, Malacca und Ceylon. Gesammelt von Herrn Prof. Dr. v. Buttel-Reepen in den Jahren 1911-1912. Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 36: 1-148.
• Imai H. T., M. Kubota, W. L. Brown, Jr., M. Ihara, M. Tohari, and R. I. Pranata. 1985. Chromosome observations on tropical ants from Indonesia. Annu. Rep. Natl. Inst. Genet. Jpn. 35: 46-48.
• Ito, F.; Yamane, S.; Eguchi, K.; Noerdjito, W. A.; Kahono, S.; Tsuji, K.; Ohkawara, K.; Yamauchi, K.; Nishida, T.; Nakamura, K. 2001. Ant species diversity in the Bogor Botanic Garden, West Java, Indonesia, with descriptions of two new species of the genus Leptanilla (Hymenoptera, Formicidae). Tropics 10:379-404.
• Jaitrong W., and T. Ting-Nga. 2005. Ant fauna of Peninsular Botanical Garden (Khao Chong), Trang Province, Southern Thailand (Hymenoptera: Formicidae). The Thailand Natural History Museum Journal 1(2): 137-147.
• Jaitrong W.; Nabhitabhata, J. 2005. A list of known ant species of Thailand. The Thailand Natural History Museum Journal 1(1): 9-54.
• Karavaiev V. 1925. Ponerinen (Fam. Formicidae) aus dem Indo-Australischen Gebiet. (Schluss). Konowia 4: 276-296.
• Karavaiev V. 1926. Ameisen aus dem Indo-Australischen Gebiet. Treubia 8: 413-445.
• Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
• Tjan K. N., H. T. Imai, M. Kubota, W. L., Jr., Brown, W. H. Gotwald, H.-S. Yong, and C. Leh. 1986. Chromosome observations of Sarawak ants. Annu. Rep. Natl. Inst. Genet. Jpn. 36: 57-58.