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| Taxon | Status | Relationship Type |
|---|---|---|
| Formica rufa r. aggerans Wheeler | Subsequent name/combination | |
| Formica rufa subsp. obscuriventris var. obscuripes Forel | Unavailable, other | member |
| Formica truncicola subsp. obscuriventris var. aggerans Wheeler | Unavailable, other | |
| Formica rufa subsp. obscuripes Forel | Subsequent name/combination | member |
| Formica rufa st. obscuripes Forel | Subsequent name/combination | member |
| Formica rufa var. obscuripes Forel | Subsequent name/combination | member |
| western thatching ant | Common name | member |
| Formica rufa subsp. rubiginosa Emery | Unavailable, other | |
| Formica (Formica) obscuripes obscuripes Forel | Subsequent name/combination | member |
| Formica rufa aggerans Wheeler | Subsequent name/combination | |
| Formica rufa subsp. aggerans Wheeler | Original name/combination | |
| Formica rufa subsp. obscuriventris var. rubiginosa Emery | Unavailable, other | |
| Formica rufa var. aggerans Wheeler | Subsequent name/combination | |
| Formica rufa obscuripes rubiginosa Emery | Unavailable, other | |
| Formica rufa obscuripes Forel | Subsequent name/combination | member |
| Formica rufa r. obscuripes Forel | Original name/combination | member |
| Formica (Formica) rufa obscuripes Forel | Subsequent name/combination | member |
| Formica obscuripes obscuripes Forel | Subsequent name/combination | member |
| Formica rufa subsp. obscuripes var. rubiginosa Emery | Unavailable, other | |
| Formica obscuripes Forel | Subsequent name/combination | member |
| Citation | Annotation |
|---|---|
| Emery C., 1925: 254. | junior synonym of Formica rufa subsp. obscuripes Forel |
| Burrill A. C., Smith M. R., 1919: 286. | keyed, placed in rufa group, distribution |
| Wheeler W. M., 1913: 392, 394, 430. | description, keyed, placed in rufa group, subgenus Formica (Formica), distribution |
| Andrews H., 1916: 422. | distribution |
| Gregg R. E., 1945: 472, 474. | keyed, distribution |
| Determiner(s) | # of Records |
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| Collecting Method | # of Records |
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