Pheidole arivo

AntWiki: The Ants --- Online
Pheidole arivo
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species group: fervens
Species: P. arivo
Binomial name
Pheidole arivo
Salata & Fisher, 2021

The species was collected between 10–1250 m in elevation, in the rainforest, montane rainforest, tropical forest, dwarf littoral forest, montane forest, tropical dry forest and grassland. Nests were located in rotten logs, under stones and dead twigs above ground. Worker were collected from sifted litter.


A member of the Pheidole fervens species group. Pheidole arivo is one of the most common members of the fervens group distributed in Antsiranana and the eastern part of the island. Its distribution overlaps with Pheidole mena, Pheidole mamirapiratra and Pheidole indica. Majors of P. arivo can be easily separated based on smooth sides posterolateral from eyes and distinct mesonotal process. Minors can be separated from P. mena based on the presence of puncta on mesosoma (minors of P. mena have mesosoma rugulate), and from P. mamirapiratra, and P. indica based on steep posterior mesonotum and entirely or mostly smooth katepisternum. In contrast, minors of P. mamirapiratra and P. indica have less steep posterior mesonotum and sculptured katepisternum.


Distribution based on Regional Taxon Lists

Malagasy Region: Madagascar (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • arivo. Pheidole arivo Salata & Fisher, 2021: 11, figs. 2B, 3B, 4B, 4I, 5B, 5I, 7A–7F (w.s.) MADAGASCAR.

Type Material

  • HOLOTYPE: 1s., Madagascar, Toamasina, Corridor Forestier Analamay-Mantadia, Ambohibolakely, -18.77898 48.36375, 918 m, 25-Nov-2012, rainforest, ex rotten log, B. L. Fisher et al. leg., BLF29805, CASENT0923263 (California Academy of Sciences).
  • PARATYPES: 1w., data the same as holotype, CASENT0300266 (California Academy of Sciences); 1w., the same locality as holotype, ex dead twig above ground, BLF29802, CASENT0300263 (PBZT); 1w., 1s., the same locality as holotype, BLF29813, CASENT0300267 (Musee d'Histoire Naturelle Genève).