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Species: Odontomachus opaciventris   Forel, 1899 

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Odontomachus opaciventris_nr

Taxonomic History (provided by Barry Bolton, 2019)

Odontomachus haematodus r. opaciventris Forel, 1899b PDF: 21, pl. 1, fig. 14 (w.q.) MEXICO. AntCat AntWiki HOL

Taxonomic history

Raised to species: Kempf, 1972b PDF: 172; Brown, 1976a: 105.


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, Colombia, Costa Rica, Ecuador, Guatemala, Honduras, Mexico, Panama
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Southern Mexico to Colombia (Brown 1976). Costa Rica: common in uplands of Cordillera de Tilaran and Cordillera Volcanica Central; the common species in Monteverde; less common to sea level on Atlantic slope (La Selva) and 500m on Pacific slope (Carara).


Natural History:

In Monteverde the diurnal foragers are common, and on warm days alate queens commonly fly into buildings. Nests are in rotten wood on the ground. Workers have been observed harvesting Calathea seeds. The species is rare at La Selva.


Brown, W. L., Jr. 1976. Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, tribe Ponerini, subtribe Odontomachiti. Section A. Introduction, subtribal characters. Genus Odontomachus. Studia Entomol. 19:67-171.

Forel, A. 1899. Formicidae. Biol. Cent.-Am. Hym. 3:1-160.

Specimen Habitat Summary

Found most commonly in these habitats: 10 times found in lowland rainforest, 5 times found in wet forest, 6 times found in montane wet forest, 2 times found in tall wet forest, 2 times found in mature wet forest, 2 times found in mixed hardwood forest, 2 times found in montane rainforest, 2 times found in Primary wet forest, 1 times found in mature moist forest, 1 times found in rainforest/pasture edge, mature rainforest on steep hillside, ...

Found most commonly in these microhabitats: 6 times at bait, 2 times nest in dead wood, 4 times ex sifted leaf litter, 3 times strays, 1 times nest under epiphyte mat on fallen log, 2 times Malaise trap, strays acanthoponera minor typhlomyrmex pri times wet forest, around Guindon cabin. 1, 2 times Sura, 1 times soil mound nest at base of tree, 2 times SCH, 1 times on dead wood, ...

Collected most commonly using these methods: 13 times search, 7 times Malaise, 4 times Baiting, 3 times Beating, 3 times flight intercept trap, 2 times Malaise trap, 2 times bait, 2 times Blacklight, 2 times miniWinkler, 1 times at light, 1 times Winkler, ...

Elevations: collected from 30 - 2000 meters, 789 meters average

Type specimens: syntype of Odontomachus haematodus opaciventris: casent0900586; syntype of Odontomachus opaciventris: casent0907435; type of Odontomachus haematodus r. opaciventris: focol0687

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