| Authorship | Forel, 1915b: 73 |
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| Forms | w. |
| Bioregion | Australasia |
| Locality | AUSTRALIA (Queensland) |
| Etymology | Littauer, 2025: Table 1: The specific name extreminigrum is adjectival, meaning “very black”. In Monomorium (neuter), the neuter ending -um is correct. Under recombination with Chelaner (masculine), mandatory gender agreement (Art. 31.2) requires the form extreminiger. |
| Primary type information | Primary type material: holotype worker. Primary type locality: Australia: Queensland, Cedar Creek (E. Mjöberg). Primary type depository: NHRS (or perhaps MHNG). |
| Chelaner rubriceps extreminiger | Subspecies |
Synonym
junior synonym of current valid taxon Chelaner rubriceps (Mayr, 1876)
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| Monomorium rubriceps extreminigrum | Subspecies |
Obsolete combination
an obsolete combination of Chelaner rubriceps extreminiger (Forel, 1915)
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Original combination |