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Colombia (type locality), Costa Rica.
The type series was collected in the Choc— region of Colombia, in bamboo (Lattke 1997).
Apterostigma chocoensis occurs in wet forest habitats throughout Costa Rica, from sea level to 1100m. Most collection records are from Winkler samples of sifted leaf litter from the forest floor. Ted Schultz found a colony at La Selva Biological Station. The nest was between leaves in the leaf litter. The fungus garden was a sponge cake-like disk between the leaves, with no envelope.
Lattke, J. E. 1997. Revisi—n del gŽnero Apterostigma Mayr (Hymenoptera: Formicidae). Arq. Zool. (S‹o Paulo) 34:121-221.
Found most commonly in these habitats: 15 times found in mature wet forest, 16 times found in montane wet forest, 15 times found in ridgetop cloud forest, isolated peak with oak trees, 12 times found in montane wet forest, along ridge leading to stream, oak trees present, probably mature or old 2nd growth with relict trees, near pasture, 10 times found in cloud forest, primary, along steep ridge near peak, 10 times found in cloud forest, primary, near ridgetop, 3 times found in Primary wet forest, 5 times found in wet forest, 4 times found in montane wet forest, along ridge descending to major river, a mix of old 2ndary forest on one slope and more mature forest on the other, 3 times found in ridgetop cloud forest, ...
Found most commonly in these microhabitats: 68 times ex sifted leaf litter, 17 times at bait, 16 times Hojarasca, 1 times sifted leaf litter, 3 times Leaf litter, 1 times ex sifted leaf litter on ground, 1 times Wet forest. Ex sifted leaf litter., 1 times strays, 1 times on forest slope, 1 times ex sifted leaf litter and rotten wood.
Collected most commonly using these methods: 57 times miniWinkler, 11 times Winkler, 17 times baiting, 14 times Mini Winkler, 6 times maxiWinkler, 3 times Winkler48h.
Elevations: collected from 50 - 1120 meters, 772 meters average
Type specimens: paratype of Apterostigma chocoense: casent0901685