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West Indies, USA (Florida), Costa Rica. Costa Rica: coastal lowlands of the Atlantic coast and Osa Peninsula; La Selva; Hitoy Cerere (100m).
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.
Found most commonly in these habitats: 9 times found in wet forest canopy, 5 times found in old cacao plantation, 7 times found in tropical rainforest, 7 times found in urban, 6 times found in Flatwoods, 2 times found in 2º tropical rainforest, 5 times found in beach, 1 times found in coffee finca, 5 times found in rainforest, 3 times found in disturbed broadleaf moist forest, ...
Found most commonly in these microhabitats: 11 times at bait, 8 times ex sifted leaf litter, 7 times leaf litter, 5 times ground forager, 6 times under stone, 4 times ground foragers, 3 times ex rotten log, 2 times base of small tree, 1 times mercury vapor lamp, 4 times epiphytic material, Pentaclethra macroloba, 4 times sifted litter (leaf mold, rotten wood), ...
Collected most commonly using these methods: 11 times hand collecting, 13 times search, 11 times Baiting, 12 times hand collection, 12 times Berlese, 12 times Fogging, 7 times Winkler, 5 times blacklight, 4 times Malaise, 2 times MiniWinkler, 2 times MaxiWinkler, ...
Elevations: collected from 1 - 1790 meters, 175 meters average