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Species: Odontomachus ruginodis   Smith, 1937 

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Taxonomic History (provided by Barry Bolton, 2020)

Odontomachus haematodus var. ruginodis Smith, 1937 PDF: 828 (w.q.) BAHAMAS. Neotropic. AntCat AntWiki HOL

Taxonomic history

[First available use of Odontomachus haematodes insularis ruginodis Wheeler, 1905c PDF: 82; unavailable name.].
Raised to species: Wilson, 1964b PDF: 4.
Junior synonym of Odontomachus brunneus: Brown, 1976c PDF: 103.
Revived from synonymy: Deyrup et al., 1985 PDF: 192; MacGown et al., 2014 PDF: 543.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Bahamas, Belize, Bolivia, Brazil, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Galapagos Islands, Guadeloupe, Guatemala, Honduras, Jamaica, Mexico, Nicaragua, Panama, Peru, Puerto Rico, Saint Vincent and the Grenadines, United States
    Oceania: New Caledonia
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Australasia, Nearctic, Neotropical
  Native to (according to species list records):
    Australasia, Neotropical bioregions

Distribution Notes:

West Indies, USA (Florida), Costa Rica. Costa Rica: coastal lowlands of the Atlantic coast and Osa Peninsula; La Selva; Hitoy Cerere (100m).


Natural History:

O. ruginodis is known to occupy coastal areas in South Florida (Deyrup et al. 1985). I have made the following collections of ruginodis in Costa Rica:

Heredia: La Selva: Collected under epiphyte mat in treefall. Tree down, long-since leafless, but trunk and branches still above surrounding veg., scattered moss/epiphyte clumps still intact.

Limon: Hitoy Cerere: Primary wet forest. Nesting in rotten log.

Limon: 25km NW Cahuita: Coconut strand along beach edge.

Puntarenas: Corcovado, San Pedrillo: foragers on ground at beach edge.

Puntarenas: Corcovado, Sirena: clearing near beach. A colony was in a bed of closely-packed plant cuttings. There were wide, flat-bottomed chambers 2cm below the soil surface in a plastic bag full of potting soil. There was a short cone built on the surface of the soil. Cavities between the bases of adjacent bags contained pupae and tending adults.

Puntarenas: Corcovado, Llorona: collecting on one of the rock islands offshore, separated from land even at low tide, vegetated on top.


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.

Deyrup, M., J. Trager, N. Carlin 1985. The genus Odontomachus in the southeastern United States (Hymenoptera: Formicidae). Entomological News 96:188-195.

Smith, M. R. 1937(1936). The ants of Puerto Rico. Journal of Agriculture of the University of Puerto Rico 20:819-875.

Wheeler, W. M. 1905. The ants of the Bahamas, with a list of the known West Indian species. Bull. Am. Mus. Nat. Hist. 21:79-135.

Specimen Habitat Summary

Found most commonly in these habitats: 9 times found in wet forest canopy, 7 times found in urban, 5 times found in old cacao plantation, 7 times found in tropical rainforest, 6 times found in rainforest, 6 times found in Flatwoods, 2 times found in disturbed semi-moist woodland, 5 times found in garden, 2 times found in 2º tropical rainforest, 5 times found in beach, ...

Found most commonly in these microhabitats: 11 times at bait, 8 times ex sifted leaf litter, 7 times leaf litter, 6 times under stone, 5 times ground forager, 3 times ex sifted litter, 2 times base of small tree, 1 times mercury vapor lamp, 4 times ground foragers, 4 times epiphytic material, Pentaclethra macroloba, 4 times sifted litter (leaf mold, rotten wood), ...

Collected most commonly using these methods: 11 times hand collecting, 14 times search, 11 times Baiting, 12 times hand collection, 12 times Berlese, 8 times Winkler, 12 times Fogging, 5 times blacklight, 4 times Malaise, 2 times MiniWinkler, 2 times MaxiWinkler, ...

Elevations: collected from 1 - 1790 meters, 179 meters average

Collect Date Range: collected between 1965-08-27 and 2019-06-25

Type specimens:

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