Myopias bidens

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Myopias bidens
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Myopias
Species: M. bidens
Binomial name
Myopias bidens
(Emery, 1900)

Myopias bidens casent0903924 p 1 high.jpg

Myopias bidens casent0903924 d 1 high.jpg

Specimen Labels


In Thailand Myopias bidens is distributed from lowland to highland in various types of forests (swamp forest, evergreen forest, dry evergreen forest and hill evergreen forest) and within both primary and secondary forests. All colonies of M. bidens were large, with up to a thousand workers, and nesting in rotten wood in an advanced stage of decomposition. (Jaitrong, Tasen & Guénard, 2018)


Keys including this Species


Latitudinal Distribution Pattern

Latitudinal Range: 15.3247222° to 6.07277778°.

Tropical South

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality), Philippines.
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.





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

  • bidens. Trapeziopelta bidens Emery, 1900c: 313 (diagnosis in key) (w.) INDONESIA (Sumatra).
    • Type-material: holotype worker.
    • Type-locality: Indonesia: Sumatra, Si Rambé (E. Modigliani).
    • Type-depository: MSNG.
    • [Also described as new by Emery, 1900d: 664.]
    • Combination in Myopias: Bolton, 1995b: 269.
    • Status as species: Emery, 1911d: 93; Chapman & Capco, 1951: 75; Bolton, 1995b: 269; Xu, Burwell & Nakamura, 2014b: 166 (in key); Probst, Guénard & Boudinot, 2015: 204 (in key); Jaitrong, Tasen & Guénard, 2018: 154 (redescription).
    • Distribution: Indonesia (Sumatra), Thailand.
    • Current subspecies: nominal plus polita.



References based on Global Ant Biodiversity Informatics

  • 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. 1900. Formicidarum species novae vel minus cognitae in collectione Musaei Nationalis Hungarici quas in Nova-Guinea, colonia germanica, collegit L. Biró. Publicatio secunda. Természetrajzi Füzetek 23: 310-338.
  • 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. "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.
  • Jaitrong W., W. Tasen, and B. Guénard. 2018. The ant genus Myopias Roger, 1861 (Hymenoptera: Formicidae: Ponerinae) in Thailand, with descriptions of three new species. Zootaxa 4526: 151–174.
  • Wheeler W. M. 1937. Additions to the ant-fauna of Krakatau and Verlaten Island. Treubia 16: 21-24.
  • Xu Z.-H.; C. J. Burwell., and A. Nakamura. 2014. A new species of the ponerine ant genus Myopias Roger from Yunnan, China, with a key to the known Oriental species. Sociobiology 61(2): 164-170.