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Taxonomic History (provided by Barry Bolton, 2020)

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Argentina, Brazil, Costa Rica, French Guiana, Guyana, Paraguay, Peru, Uruguay, Venezuela
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Distribution Notes:

Costa Rica south through tropical South America to Argentina (Kugler and Brown 1982). Costa Rica: southwestern lowlands and Osa Peninsula.

References:

Brown, W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118:175-362.

Kugler, C., W. L. Brown, Jr. 1982. Revisionary and other studies on the ant genus Ectatomma, including the descriptions of two new species. Search: Agriculture (Cornell), No. 24, 8 pp.

Roger, J. 1863. Die neu aufgefuehrten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Erganzung einiger frueher gegebenen Beschreibungen. Berl. Entomol. Z. 7:131-214.

Taxonomic Treatment (provided by Plazi)

Specimen Habitat Summary

Found most commonly in these habitats: 25 times found in Semideciduous seasonal forest, 2 times found in tropical rainforest, 2 times found in wet forest, 2 times found in Bamboo forest, 2 times found in Forest, 1 times found in lowland rainforest, 1 times found in lowland wet forest, 1 times found in mature rainforest, edge of forest near pasture and agricultural land, steep rocky terrain, 1 times found in mature rainforest, near pasture edge, small stream through forest, 1 times found in mature wet forest, ...

Found most commonly in these microhabitats: 5 times ex sifted leaf litter, 2 times ex sifted litter, 0 times Clearing, 2 times at bait, 1 times Ticoporo Forest Reserve. Dense second growth with few larger trees. Ex sifted le, 0 times Pasture, 1 times Leaf litter, 1 times general collecting, 1 times Foraging ants, 1 times forager, 1 times at sugar bait on ground, ...

Collected most commonly using these methods: 24 times epigaeic pitfall, 5 times winkler, 3 times search, 3 times direct collection, 3 times miniWinkler, 2 times baiting, 0 times Berlesate of colonized litter bags (previously sterilized), 1 times berlese funnel, 1 times Hand, 1 times Hypogaeic pitfall, 1 times pan trap, ...

Elevations: collected from 30 - 764 meters, 497 meters average

Type specimens: syntype of Ectatomma edentatum inversa: casent0915106; syntype of Ectatomma edentatum iris: casent0907177; syntype of Ectatomma edentatum macdonaghi: casent0907178; syntype of Ectatomma edentatum muticum densestriata: casent0907180; syntype of Ectatomma morgani: casent0907179

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