Myrmoteras tomimasai

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Myrmoteras tomimasai
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Myrmoteratini
Genus: Myrmoteras
Species: M. tomimasai
Binomial name
Myrmoteras tomimasai
Bui, Eguchi & Yamane, 2013



Paratype Specimen Label

Nothing is known about the biology of Myrmoteras tomimasai.


Bui, Eguchi and Yamane (2013) - This species is separated from other Indo-Chinese congeners by the extensively sculptured dorsum of head, dark-colored legs, and abundant appressed pubescence on gastral tergites. The worker from Thung Yai, western Thailand is exceptional in having yellow coxae.

Keys including this Species


Vietnam, northern Thailand.

Latitudinal Distribution Pattern

Latitudinal Range: 19.16666667° to 16.21666667°.

Tropical South

Distribution based on Regional Taxon Lists

Oriental Region: Thailand, Vietnam (type locality).

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.



Known only from the worker caste.


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

  • tomimasai. Myrmoteras tomimasai Bui, Eguchi & Yamane, 2013: 556, fig. 8 (w.) VIETNAM.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



TL 3.5–4.0, HL 1.06–1.12 [1.08] (1.08), HW 1.06–1.15 [1.00] (1.08), EL 0.67–0.73 [0.69] (0.69), ML 1.25–1.37 [1.31] (1.31), SL 1.21–1.31 [1.27] (1.24), PrW 0.65–0.75 [0.67] (0.68), HfL 1.33–1.46 [1.37] (1.36), CI 98–103 [102] (100), SI 113–116 (117). (Holotype and 5 paratype and non-type workers were measured.)

Body dark reddish brown; legs with similar coloration as body, but often slightly paler; mandible light brown. Body with erect hairs; pubescence dense on frons, pronotum and gastral tergites. Clypeus faintly punctate; frons extensively rugoso-punctate, but area around antennal insertion finely rugose; vertex of head (including occipital lobe) smooth. Anteriormost part of pronotum transversely rugose, and remainder smooth to weakly punctate; dorsal face of mesonotum weakly rugose; lateral face of mesosoma rugose more or less longitudinally; mesopleuron, metapleuron and lateral face of propodeum smooth or weakly punctate; dorsum of propodeum weakly rugoso-punctate transversely. Frontal sulcus faint, reaching median ocellus; anterior clypeal margin concave; mandible with 8 teeth that reduce in size from apical to basal teeth; two denticles present between first and second teeth; palp formula 6,4; orbital groove absent; scape slightly shorter than funicular segments combined; funicular segments each longer than broad. Pronotum in lateral view flattened dorsally; propodeum in lateral view roundly convex posterodorsally. Petiolar node in lateral view with vertical anterior face and steep posterior slope; ventral outline of petiole beneath the node slightly sinuate or almost straight.

Type Material

Holotype worker from Northern Middle Vietnam, Nghe An Province: Pu Mat NP.: Sang Le forest, ca. 220 m alt. 19010–11’ N, 104037–38 E, 2 iv 2006, leg. K. Eguchi (Eg02iv06-12) VNMN. Paratypes: 1 worker, same locality as holotype, 1 iv 2006, leg. K. Eguchi (Eg01iv06-11); 6 workers, same colony as holotype, leg. K. Eguchi and V. T. Bui (Eg02iv06-12); 3 workers, same locality, 3 iv 2006, leg. K. Eguchi (Eg03iv06-03); 3 workers,same locality, 3 iv 2006, leg. K. Eguchi (Eg03iv06-07) [[[ACEG|Katsuyuki Eguchi]], Musee d'Histoire Naturelle Genève, THNHM, SKY Collection, VNMN.

Non-type material.

Vietnam: 1 worker, Northern Vietnam, Ninh Binh Prov., Cuc Phuong NP. , 10–11 viii 1998, leg. Sk. Yamane; 2 workers, same locality, 11 viii 1998, leg. V. T. Bui; 3 workers, same locality, 9 xi 2001, leg. K. Eguchi (Eg01-VN-165); 2 workers, Northern Middle Vietnam, Thua Thien Hue Prov., Bach Ma NP., ca. 415–635 m alt., 16013’N–107051’E, 12 xi 2009, leg. K. Eguchi (Eg12xi09-10). Thailand: 2 workers, North-East Thailand, Loei Prov., Phu Ruea Distr., MDF, termite mound, 12 iv 2008, leg. Sk Yamane (TH08-SKY-118); 1 worker, Western Thailand, Tak Prov., Tung Yai [Thung Yai] WS, 22 xi 2000, leg. A. Suwannasri.


The specific name is after the son of Eguchi’s best friend.


References based on Global Ant Biodiversity Informatics

  • Bui V. T., K. Eguchi, and S. Yamane. 2013. Revision of the ant genus Myrmoteras of the Indo-Chiese Peninsula (Hymenoptera: Formicidae: Formicinae). Zootaxa 3666(4): 544–558.