Acromyrmex ambiguus

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Acromyrmex ambiguus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Acromyrmex
Species: A. ambiguus
Binomial name
Acromyrmex ambiguus
(Emery, 1888)

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Specimen Labels

Synonyms

Acromyrmex ambiguus is common in Rio Grande do Sul, Brazil. They harvest monocotyledonous leaves (Loeck and Grutzmacher 2001) and masticate their collected plant material into tiny pieces to create the substrate for growing their fungal gardens. A molecular study of co-occuring populations of this species and Acromyrmex heyeri showed both of these species are cultivating Leucoagaricus gongylophorus but that there are differences in the fungal strains used by the two ant species (Pereira et al. 2015).

Identification

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Brazil (type locality), Paraguay, Uruguay.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

This species is a host for the diapriid wasp Gymnopria lucens (a parasite) in Brazil, Uruguay (Loiacono, 1987; Gonzalez et al., 2016).

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • ambiguus. Atta (Acromyrmex) lundi var. ambigua Emery, 1888c: 358 (w.) BRAZIL. Goni et al., 1983: 365 (k.). Combination in Acromyrmex: Bruch, 1914: 216. Raised to species: Emery, 1905c: 50. Senior synonym of erectus: Gonçalves, 1961: 131.
  • erectus. Acromyrmex ambiguus var. erectus Santschi, 1925a: 384, fig. 2 (w.) BRAZIL. Junior synonym of ambiguus: Gonçalves, 1961: 131.

Description

Karyotype

2n = 38, karyotype = 2M+6SM+16ST+14A (Uruguay) (Goñi et al., 1984).

References