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I have never found a nest of this species but it must be subterranean. In the Project ALAS sampling at La Selva Biological Station, collections of minor workers together with major workers were relatively frequent in Berlese samples, which incorporate soil to 15cm deep. In contrast, minor workers were common but major workers rare in Winkler samples, which sample only the surface litter.
There is strong variation in both the size and sculpture of major workers. Some have the face with pronounced, widely spaced punctures separated by smooth and shiny interspaces. Others have the face punctatorugose, finely etched over the entire surface and without smooth and shiny interspaces. Minor workers associated with these different majors (in same Berlese sample or recruiting together to bait) look identical. I have found both major worker forms together in the same Berlese sample and there are occasional intermediate forms, thus it is almost certainly intraspecific variation. It is not related to the size of major workers. Small to very large major workers can occur with either morphology.
I referred to this species as morphospecies JTL015 in previous work.
Found most commonly in these habitats: 393 times found in mature wet forest, 162 times found in montane wet forest, 10 times found in wet forest, 11 times found in tropical rainforest, some big trees, 1 times found in Puesto #13,295G,10m., 1 times found in Trampa13,341G. 10m., 1 times found in Puesto#4,214G,10m., 8 times found in mature rainforest, edge of forest near pasture and agricultural land, steep rocky terrain, 6 times found in 2nd growth wet forest, 1 times found in Sendero Tres Ríos, ...
Found most commonly in these microhabitats: 412 times ex sifted leaf litter, 122 times Hojarasca, 42 times at bait, 5 times Bosque Primario, Suelo, 7 times Camino toma de Agua, 4 times Cerca de M/20 y orilla de Quebrada Cantarrana, 4 times Muestras tomada en el transecto de Mini Winkler #2, 4 times Del refugio hacia M/14, 3 times Del cruce de Cascante hacia el Ceibo, 4 times Cerca del Refugio Cascante, 1 times nest in clay soil, ...
Collected most commonly using these methods: 395 times MiniWinkler, 78 times Berlese, 119 times Mini Winkler, 23 times Winkler, 36 times baiting, 8 times bait, 5 times search, 3 times Lure/Bait, 4 times Pitfall, 1 times Unknown, 3 times Malaise, ...
Elevations: collected from 5 - 1520 meters, 300 meters average
Collect Date Range: collected between 1982-01-25 and 2020-01-06