Ectomomyrmex annamitus

Ectomomyrmex annamitus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Ponerinae
Tribe:	Ponerini
Genus:	Ectomomyrmex
Species:	E. annamitus
Binomial name
Ectomomyrmex annamitus (André, 1892) Specimen Labels
Subspecies
Ectomomyrmex annamitus arcuatus Forel, 1900

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 30° to 29.383333°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Indo-Australian Region: Philippines.
Oriental Region: India, Myanmar, Vietnam (type locality).
Palaearctic Region: China.

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.

Nomenclature

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

• annamitus. Ponera annamita André, 1892a: 48 (w.q.m.) VIETNAM. Combination in Bothroponera: Dalla Torre, 1893: 35; in Ectomomyrmex: Forel, 1900d: 322; Bingham, 1903: 87; in Pachycondyla (Ectomomyrmex): Emery, 1901a: 46; in Bothroponera: Joma & Mackay, 2013: 2; in Ectomomyrmex: Schmidt & Shattuck, 2014: 193. Current subspecies: nominal plus arcuatus.

Description

Worker

Bingham (1903): Black; the mandibles, antennas, femora, tibiae and tarsi of the legs and apex of the abdomen castaneous red. Head, thorax and abdomen with fairly abundant erect pale red hairs, covered by a minute sericeous pubescence, only visible in certain lights and in no way obscuring the sculpture. Head proportionately more elongate than in E. javanus, posteriorly less deeply emarginate, very densely and somewhat coarsely reticulate- punctate, the occiput smooth and shining; mandibles longer, with the masticatory region not so broad, armed with 7 teeth. Thorax nearly as broad anteriorly as the head, densely and somewhat more finely reticulate-punctate, coarsely rugose towards the apex of the basal portion of the metanotum; legs proportionately shorter, somewhat stouter. Node of the pedicel very thick, coarsely rugose above, and with coarse concentric striae on its posterior face, which is slightly concave; abdomen slightly shining, finely and closely punctured, but not granulate as the head and thorax are.

Length: 3-6 mm

Queen

Bingham (1903): "Head truncate posteriorly and on the posterior halt: of its sides. Back of the thorax depressed, the pronotum forming nearly one-third of its entire length. Node of the pedicel as in the worker. The apical sloping portion of the metanotum with beautiful arched striae, concave above, strongly marked and regular. Posterior face of the node of pedicel striated in the same way, but the striae convex above. The circumference of the node of pedicel transversely ridged; its anterior face strongly striate, the striae arched and convex above as on the posterior face. Head and thorax and the anterior three-fourths of the basal abdominal segment densely reticulate-punctate, opaque. Wings lightly shaded with brown, the nervures and stigma brown. Pilosity and pubescence short and reddish, moderate, somewhat abundant on the abdomen. The rest as in the worker. Black, with the antennae, mandibles, legs and apex of the abdomen reddish." (Forel.)

Length: 6.3 mm

References

• André, E. 1892a. Matériaux myrmécologiques. Rev. Entomol. (Caen) 11: 45-56.
• Baltazar, C.R. 1966. A catalogue of Philippine Hymenoptera (with a bibliography, 1758-1963). Pacific Insects Monographs 8: 1-488. (page 243, listed)
• Bingham, C. T. 1903. The fauna of British India, including Ceylon and Burma. Hymenoptera, Vol. II. Ants and Cuckoo-wasps. London: Taylor and Francis, 506 pp. (page 87, Combination in Ectomomyrmex)
• Brassard, F., Leong, C.-M., Chan, H.-H., Guénard, B. 2021. High diversity in urban areas: How comprehensive sampling reveals high ant species richness within one of the most urbanized regions of the world. Diversity 13, 358 (doi:10.3390/d13080358).
• Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 35, Combination in Bothroponera)
• Emery, C. 1901b. Notes sur les sous-familles des Dorylines et Ponérines (Famille des Formicides). Ann. Soc. Entomol. Belg. 45: 32-54 (page 46, Combination in Pachycondyla (Ectomomyrmex))
• Forel, A. 1900f. Les Formicides de l'Empire des Indes et de Ceylan. Part VII. J. Bombay Nat. Hist. Soc. 13: 303-332 (page 322, Combination in Ectomomyrmex)
• Schmidt, C.A. & Shattuck, S.O. 2014. The higher classification of the ant subfamily Ponerinae (Hymenoptera: Formicidae), with a review of ponerine ecology and behavior. Zootaxa 3817, 1–242 (doi:10.11646/zootaxa.3817.1.1).
• Subedi, I.P., Budha, P.B., Bharti, H., Alonso, L., Yamane, S. 2023. Ponerine ants of Nepal (Hymenoptera: Formicidae, Ponerinae): a generic synopsis, new faunal records, and rediscovery of a rare ant, Emeryopone franzi (Baroni Urbani 1975). (doi:10.20362/am.016003).
• 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

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