Neivamyrmex swainsonii
(Shuckard, 1840)
Swainson's Legionary Ant
Neivamyrmex swainsonii is a of legionary ant in the Formicidae, native to South America. It belongs to the Neivamyrmex, which comprises nomadic army ants known for raiding the nests of other species. The species exhibits the typical legionary ant lifestyle: colonies are nomadic during active periods, with foraging nocturnally in groups to prey on larvae and pupae of other ants. Like other Neivamyrmex species, N. swainsonii is associated with specialized myrmecophilous beetles, particularly clown beetles in the Hetaeriinae that live as guests within ant colonies.



Pronunciation
How to pronounce Neivamyrmex swainsonii: /ˌnaɪvəˈmɜrmɛks sweɪnˈsoʊniaɪ/
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Images
Distribution
Recorded from Brazil across multiple states including Amazonas (AM), Bahia (BA), Distrito Federal (DF), Goiás (GO), Minas Gerais (MG), Mato Grosso do Sul (MS), Mato Grosso (MT), Pará (PA), Paraná (PR), Rio de Janeiro (RJ), Rondônia (RO), Roraima (RR), and São Paulo (SP).
Diet
Preys on larvae and pupae of other .
Behavior
Exhibits nomadic colony with periodic emigrations. are primarily subterranean and foragers, conducting group raids on other nests. Colonies become sedentary during winter months.
Ecological Role
As a legionary ant, functions as an apex of other colonies, potentially regulating ant structure. Serves as for specialized myrmecophilous beetles.
Similar Taxa
- Neivamyrmex nigrescensAlso a North American legionary ant; N. swainsonii is distinguished by its South American distribution
- Neivamyrmex opacithoraxAnother North American ; differs in geographic range and subtle morphological traits
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
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