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| Taxon | Status | Relationship Type |
|---|---|---|
| Labidus nigrescens Cresson | Original name/combination | member |
| Eciton (Acamatus) nigrescens (Cresson) | Subsequent name/combination | member |
| Eciton (Acamatus) schmitti Emery | Original name/combination | |
| Eciton Schmitti Emery | Original name/combination | |
| Eciton schmitti Emery | Subsequent name/combination | |
| Neivamyrmex schmitti (Emery) | Subsequent name/combination | |
| Eciton nigrescens (Cresson) | Subsequent name/combination | member |
| Eciton (Acmatus) schmitti Emery | Unavailable, literature misspelling | |
| Eciton (Neivamyrmex) nigrescens (Cresson) | Subsequent name/combination | member |
| Neivamyrmex nigrescens (Cresson) | Subsequent name/combination | member |
| Eciton (Labidus) nigrescens (Cresson) | Subsequent name/combination | member |
| Citation | Annotation |
|---|---|
| Forel A., 1899: 169. | distribution |
| Emery C., 1895: 258. | description, distribution |
| Wheeler W. M., Long W. H., 1901: 161. | description |
| Ashmead W. H., 1906: 24. | designated as type species of Acamatus Emery |
| Emery C., 1910: 25. | cataloged, placed in subgenus Eciton (Acamatus) |
| Wheeler W. M., 1904: 300. | distribution |
| Wheeler W. M., 1902: 188. | description |
| Wheeler W. M., 1910: 562. | distribution, placed in subgenus Eciton (Acamatus) |
| Hayes W. P., 1925: 42. | distribution |
| Smith M. R., 1927: 401. | description, distribution |
| Dennis C. A., 1938: 278. | distribution |
| Brimley C. S., 1938: 560. | distribution |
| Determiner(s) | # of Records |
|---|
| Collecting Method | # of Records |
|---|