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See Also:

Crematogaster opaca_cf, Crematogaster opaca cedrosensis, Crematogaster opaca coarctata, Crematogaster opaca dentinoda, Crematogaster opaca dentinodis, Crematogaster opaca depilis, Crematogaster opaca mormonum, Crematogaster opaca punctulata, Crematogaster opaca texana

Taxonomic History (provided by Barry Bolton, 2017)

Distribution:

Nearctic Region: Arizona, Hidalgo
Neotropical Region: Chiapas, Comayagua, Honduras, Nayarit, Oaxaca, Olancho

Distribution Notes:

Arizona (USA) [Hunt, J.H., Snelling, R.R. (1975), A Checklist of the Ants of Arizona. Arizona Academy of Science, 10: 20-23.]; Mexico; Honduras.

Specimen Habitat Summary

Found most commonly in these habitats: 10 times found in agricultural zone, 4 times found in cloud forest, 2 times found in cloud forest clearing, 4 times found in xerophyl scrub, 3 times found in mesophil forest, 1 times found in second growth mesophyl forest, 1 times found in lowland rainforest, 1 times found in oak forest, 1 times found in pine/Liquidambar, 1 times found in montane wet forest, ...

Found most commonly in these microhabitats: 1 times on Liquidambar branchfall, 5 times beating vegetation, 5 times ex sifted leaf litter, 1 times nest under loose bark dead wood, 1 times nest in dead wood, 1 times column on tree trunk at night, 3 times at bait, 1 times on building, 1 times in dead stick, 1 times yellow pan trap, 1 times Malaise trap, ...

Collected most commonly using these methods: 6 times search, 14 times pitfall, 5 times Beating, 3 times Baiting, 2 times Winkler, 2 times miniWinkler, 1 times under rock, 1 times yellow pan trap, 1 times In Quercus rugulosa, 1 times Malaise, 1 times maxiWinkler, ...

Elevations: collected from 370 - 2320 meters, 1714 meters average

Type specimens: syntype of Crematogaster opaca: casent0902152, casent0919705; syntype opaca: jtl056025

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