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Species: Aphaenogaster occidentalis   (Emery, 1895) 


Classification:
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Taxonomic History (provided by Barry Bolton, 2017)

Stenamma (Aphaenogaster) subterraneum subsp. occidentale Emery, 1895d PDF: 301 (w.) U.S.A. Nearctic. "Pullman, Washington [46°44′N 117°11′W], United States (T. Pergande)." AntCat AntWiki HOL

Taxonomic history

Wheeler & Wheeler, 1953b PDF: 61 (l.).
Combination in Aphaenogaster (Attomyrma): Emery, 1921c: 60.
Status as species: Hunt & Snelling, 1975 PDF: 21.
Senior synonym of Aphaenogaster subterranea valida: Shattuck & Cover, 2016 10.11646/zootaxa.4175.1.2 PDF: 13.
Material of the unavailable name Aphaenogaster manni referred here: Creighton, 1950a PDF: 150.
Senior synonym of Aphaenogaster subterranea borealis: Creighton, 1950a PDF: 150.

Taxon Page Images:

A queen Aphaenogaster occidentalis in the nest (Blodgett Forest, California, USA).
Image copyright Alex Wild.

Distribution:

(based on species list records)
Nearctic Region: Arizona, British Columbia, California, Canada, Colorado, Florida, Idaho, Montana, New Mexico, North America, Oregon, United States, Utah, Washington, Wyoming
Neotropical Region: Americas

Taxonomic Treatment (provided by Plazi)

Specimen Habitat Summary

Found most commonly in these habitats: 7 times found in oak woodland, 7 times found in pine forest, 2 times found in Riparian woodland around stream; mostly Acer grandidentata, abundant Rubus parviflorus in understory., 13 times found in shrub steppe, 11 times found in redwood forest, 0 times found in Deciduous thicket, 4 times found in chaparral, 0 times found in Ponderosa pine forest, 6 times found in conifer forest, 6 times found in pine/fir woodland, ...

Found most commonly in these microhabitats: 57 times under stone, 13 times nest under stone, 29 times under rock, 11 times nest under rock, 5 times ground forager(s), 6 times ex sifted leaf litter, 4 times under rocks, 5 times nest under P. menziesii logs, 7 times leaf litter, 6 times sifted litter, 2 times workers under rock, ...

Collected most commonly using these methods: 87 times Search, 47 times hand collecting, 1 times under rock, 23 times Bay Area Ant Survey (BAAS), 29 times aspirated, 3 times pitfall trap, 1 times in horse manure, 6 times winkler, 2 times hand coll., 1 times Winkler sifter, 4 times Davis sifter, ...

Elevations: collected from 5 - 3565 meters, 1236 meters average

Type specimens: syntype of Stenamma subterraneum occidentale: casent0916078; type: casent0172935, casent0172936, casent0172937



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