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|Combination in Erebomyrma: Wilson, 1962a PDF: 63; Wilson, 1986b PDF: 61; in Oligomyrmex: Ettershank, 1966 PDF: 124; Bolton, 1995b: 300; in Carebara: Fernández, 2004A PDF: 205.|
Mexico to southern Brazil (Fern‡ndez 2004). Costa Rica: wet forest habitats on both slopes to 1300m elevation.
This species is mainly known from Winkler samples of sifted litter from the forest floor. It is relatively common in Winkler samples from lowland and mid-elevation wet forest habitats. It is less often collected using other methods. Nichole Barger made one collection of urichi while baiting at La Selva Biological Station. Bill Eberhard observed a flight of males from a nest in the ground near his home in Cerros de Escazu. Nevermann found the type series of nevermanni (now a junior synonym of urichi) in a rotten log, in company with Pachycondyla stigma.
Fern‡ndez C., F. 2004. The American species of the myrmicine ant genus Carebara Westwood (Hymenoptera: Formicidae). Caldasia 26:191-238.
Found most commonly in these habitats: 320 times found in mature wet forest, 148 times found in montane wet forest, 56 times found in tropical rainforest, 43 times found in tropical wet forest, 31 times found in tropical moist forest, 31 times found in lowland wet forest, 29 times found in mesophil forest, 17 times found in wet forest, 18 times found in 2º wet forest, 18 times found in mature rainforest, edge of forest near pasture and agricultural land, steep rocky terrain, ...
Found most commonly in these microhabitats: 618 times ex sifted leaf litter, 117 times Hojarasca, 64 times at bait, 1 times leaf litter, 3 times sifted litter (leaf mold, rotten wood), 1 times sifted leaf litter, 1 times ex sifted leaf litter on ground, 1 times ex sifted leaf litter and rotten wood, 1 times Cerca del Refugio Cascante, 1 times Cerca de; Cañon del rio Peje hacia Cascante, 1 times under stone, ...
Collected most commonly using these methods: 505 times MiniWinkler, 111 times Mini Winkler, 84 times MaxiWinkler, 46 times Winkler, 64 times Baiting, 19 times Berlese, 0 times Baited pitfall, 4 times search, 4 times Search & Berles, 0 times Hypogaeic pitfall, 1 times Lure/Bait, ...
Elevations: collected from 20 - 1470 meters, 450 meters average