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Taxon | Status | Relationship Type |
---|---|---|
Formica rufa subsp. difficilis Emery | Original name/combination | member |
Formica rufa difficilis Emery | Subsequent name/combination | member |
Formica (Formica) difficilis Emery | Subsequent name/combination | member |
Formica habrogyna Cole | Original name/combination | |
Formica difficilis Emery | Subsequent name/combination | member |
Citation | Annotation |
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Cole A. C., 1939: 413. | original description |
Creighton W. S., 1950: 500. | junior synonym of Formica difficilis Emery |
Cole A. C., 1940: 73, 76. | description, keyed, distribution |
Cole A. C., 1943: 389. | junior synonym of Formica difficilis Emery |
Smith M. R., 1947: 623. | included in list of species of microgyna group of Formica (Formica) of the United States |
Determiner(s) | # of Records |
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Collecting Method | # of Records |
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