Ectatomma brunneum

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Ectatomma brunneum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Ectatomma
Species: E. brunneum
Binomial name
Ectatomma brunneum
Smith, F., 1858

Ectatomma brunneum casent0173375 profile 1.jpg

Ectatomma brunneum casent0173375 dorsal 1.jpg

Specimen labels

Synonyms

Koch et al. (2018) sampled this species in Caryocar barsiliense trees, in southeastern Brazil cerrado, as part of a study examining species interactions in ant-plants.

Identification

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 25.68015° to -64.36°.

       
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Bolivia, Brazil (type locality), Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname.

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.
pChart

Biology

Bernardia et al (2017) examined the components and variability of E. brunneum sting venom in workers. The venom primarily consisted of proteins and peptides. Workers were sampled across a range of habitats and the venom composition varied with environment, apparently due to their diet.

Dambros et al. (2018) - Ectatomma brunneum was collected via arboreal fogging in an inundated northern Pantanal (Mato Grasso, Brazil) cambarazal forest. The seasonally flooded forest was dominated by Vochysia divergens Pohl. (Vochysiaceae), regionally known as cambará, a tree species considered invasive to the Pantanal’s natural fields.

Passos and Leal (2019) - This species was found attending extrafloral nectaries of the plant Turnera subulata in northeastern Brazil (12°16′24″S 38°57′20″W / 12.27333°S 38.95556°W / -12.27333; -38.95556) Caatinga vegetation. Ectatomma brunneum was classified as a subordinate species and was infrequently observed.

Association with Other Organisms

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Castes

Nomenclature

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

  • brunneum. Ectatomma brunnea Smith, F. 1858b: 103 (w.q.) BRAZIL (Pará).
    • Type-material: syntype worker(s), 1 syntype queen.
    • [Note: certainly 1 syntype worker in BMNH together with a second worker and a queen, also from the type-locality, but the worker has passed through the Farren White collection and has lost its original labels.]
    • Type-locality: Brazil: Santarem (no collector’s name, perhaps Bates).
    • Type-depository: BMNH.
    • Replacement name for Formica quadridens Fabricius, 1793: 362. [Junior primary homonym of Formica quadridens De Geer, 1773: 609.]
    • Junior synonym of quadridens: Roger, 1860: 307; Roger, 1863b: 17; Mayr, 1863: 410; Dalla Torre, 1893: 25; Forel, 1895b: 112; Wheeler, W.M. 1908a: 123; Emery, 1911d: 43; Bruch, 1916: 295; Gallardo, 1918a: 32; Borgmeier, 1923: 58; Kempf, 1972a: 105.
    • [Note: brunnea junior synonym of quadridens Fabricius (synonymy by Roger, 1860: 307); hence brunnea first available replacement name (Bolton, 1995b: 186).]
    • Status as species: Bolton, 1995b: 186; Wild, 2007b: 26; Arias-Penna, 2008b: 60; Bezděčková, et al. 2015: 110; Feitosa, 2015c: 97; Feitosa & Prada-Achiardi, 2019: 665; Camacho, Franco, Branstetter, et al. 2022: 10.
    • Distribution: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname, Trinidad.

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Ectatomma brunnea

Syntype worker in The Natural History Museum. “Santarem” (Brazil). The syntype queen can not be positively identified. In The Natural History Museum there is another worker and another queen, also from the type-locality of Santarem, but the worker has passed through the Farren White collection.

Description

Karyotype

  • n = 22, 2n = 44, karyotype = 22M+22A (Brazil) (Barros et al., 2008; Mariano et al., 2015).

References

References based on Global Ant Biodiversity Informatics

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