Ectomomyrmex leeuwenhoeki

AntWiki: The Ants --- Online
Ectomomyrmex leeuwenhoeki
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Ectomomyrmex
Species: E. leeuwenhoeki
Binomial name
Ectomomyrmex leeuwenhoeki
(Forel, 1886)

Pachycondyla leeuwenhoeki casent0106306 p 1 high.jpg

Pachycondyla leeuwenhoeki casent0106306 d 1 high.jpg

Specimen Labels

Subspecies

Heterick & Kitching (2022) collected this species in a pitfall trap within a lowland dipterocarp forest in Brunei.


At a Glance • Gamergate  

Identification

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 29.566° to 1.62°.

   
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Brunei Darussalam, Indonesia, Malaysia, Philippines, Singapore.
Oriental Region: Bangladesh, India (type locality), Laos, Thailand, Vietnam.
Palaearctic Region: China.

Distribution based on AntMaps

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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.
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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.
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Biology

This species is AQ+G type: sexual reproduction is performed by dealated queen (seven colonies) or mated worker (eight colonies). All colonies (from Ulu Gombak, Peninsular Malaysia) were monogynous with one mated egg-laying female. Colony size was very small with fewer than 10 workers. In both the gamergate and queen colonies, dominance interactions were very rare but frequent aggressions were observed in orphaned colonies. The most dominant worker in an orphaned colony fragment mated with a male (Ito et al. 2007)

Castes

Pachycondyla-leeuwenhoekiH3.jpgPachycondyla-leeuwenhoekiL2.jpgPachycondyla-leeuwenhoekiD2.jpgPachycondyla-leeuwenhoeki.jpg
. Owned by Museum of Comparative Zoology.

Images from AntWeb

Pachycondyla leeuwenhoeki casent0281893 p 1 high.jpgPachycondyla leeuwenhoeki casent0281893 h 1 high.jpgPachycondyla leeuwenhoeki casent0281893 d 1 high.jpgPachycondyla leeuwenhoeki casent0281893 l 1 high.jpg
Worker. Specimen code casent0281893. Photographer Estella Ortega, uploaded by California Academy of Sciences. Owned by NHMUK, London, UK.
Pachycondyla leeuwenhoeki casent0907272 d 1 high.jpgPachycondyla leeuwenhoeki casent0907272 h 1 high.jpgPachycondyla leeuwenhoeki casent0907272 p 1 high.jpgPachycondyla leeuwenhoeki casent0907272 l 1 high.jpg
Syntype of Ponera leeuwenhoekiWorker. Specimen code casent0907272. Photographer Will Ericson, 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.

  • leeuwenhoeki. Ponera leeuwenhoeki Forel, 1886d: 244 (w.) INDIA. Imai, Brown, et al. 1984: 67 (k.). Combination in Bothroponera: Forel, 1891b: 124; in Ectomomyrmex: Forel, 1900d: 321; in Pachycondyla (Ectomomyrmex): Emery, 1901a: 46; in Bothroponera: Joma & Mackay, 2013: 2; in Ectomomyrmex: Schmidt & Shattuck, 2014: 193. Current subspecies: nominal plus jacobsoni, sumatrensis. See also: Bingham, 1903: 88.

Description

Worker

Bingham (1903): Black; the mandibles, antennae and the femora, tibiae and tarsi of the legs brownish red, the scape and the femora shaded above with fuscous. Head, thorax and abdomen covered rather sparselv with short erect red hairs and with a minute pubescence, visible only in certain lights. Head proportionately not so long as in E. annamitus, coarsely longitudinally striate, very opaque; the emarginate posterior face of the occiput with a few coarse oblique striae. Thorax coarsely striate, the striae on the pronotum concentric, arched anteriorly, on the posterior portion longitudinal but irregular, giving the metanotum a coarsely rugose appearance; posterior face of the latter slightly concave, transversely striate; legs robust, pruinose. Node of the pedicel remarkably thick above, coarsely punctured and rugose, its posterior face with a few transverse striae in the middle; abdomen with the basal segment coarsely, the remaining segments shining and finely punctured.

Length: 7 - 8 mm

Karyotype

  • n = 8, 2n = 16 (Malaysia) (Imai et al., 1983; Mariano et al., 2015) (as Pachycondyla leeuwenhoeki).

References

References based on Global Ant Biodiversity Informatics

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