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Pheidole oswaldi
| Pheidole oswaldi | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. oswaldi |
| Binomial name | |
| Pheidole oswaldi Forel, 1891
| |
The species was collected between 3–1490 m elevation, in rainforest, montane forest, littoral rainforest, montane rainforest, and montane shrubland. Nests were located in rotten logs, rotting tree stumps, and rotten sticks on the ground. Workers were collected from sifted litter, on low vegetation, and on tree trunks (Salata & Fisher, 2020).
Identification
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -15.66666667° to -15.68333333°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
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. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Images from AntWeb
   
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| Syntype of Pheidole oswaldi. Male (alate). Specimen code casent0101706. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
   
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| Syntype of Pheidole oswaldi. Worker. Specimen code casent0101724. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
    
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| Syntype of Pheidole oswaldi. Queen (alate/dealate). Specimen code casent0101808. Photographer Nick Olgeirson, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
Pheidole.png)
X-ray micro-CT scan 3D model of Pheidole oswaldi (major worker) prepared by the Economo lab at OIST.
A major worker from Madagascar. See on Sketchfab. See list of 3D images.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- oswaldi. Pheidole oswaldi Forel, 1891b: 173 (s.w.q.m.) MADAGASCAR.
Type Material
- LECTOTYPE [designated here]: 1s., Madagascar, Toamasina, 30 miles SW Toamasina, 28.IX.1889, coll. Oswald, CASENT0101640, ANTC3354 (MHNG).
- PARALECTOTYPES: 3w., the same data as lectotype, CASENT0101724, ANTC3355 (MHNG); 1q., Imerina, coll. Sikora, CASENT0101808, ANTC3353 (MHNG); 1m., Imerina, coll. Sikora, CASENT0101706, ANTC3356 (MHNG).
Description
References
- Fischer, G., Friedman, N.R., Huang, J.-P., Narula, N., Knowles, L.L., Fisher, B.L., Mikheyev, A.S., Economo, E.P. 2020. Socially parasitic ants evolve a mosaic of host-matching and parasitic morphological traits. Current Biology 30, 3639–3646.e4 (doi:10.1016/j.cub.2020.06.078).
- Forel, A. 1891c. Les Formicides. [part]. In: Grandidier, A. Histoire physique, naturelle, et politique de Madagascar. Volume XX. Histoire naturelle des Hyménoptères. Deuxième partie (28e fascicule). Paris: Hachette et Cie, v + 237 pp. (page 173,227, soldier, worker, queen, male described)
- Salata, S., Fisher, B.L. 2020. The ant genus Pheidole Westwood, 1839 (Hymenoptera: Formicidae) in Madagascar—taxonomic revision of the bessonii species-group. Zootaxa 4843 (1): 1–64 (doi:10.11646/zootaxa.4843.1.1).
- Wheeler, W. M. 1922k. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. IX. A synonymic list of the ants of the Malagasy region. Bull. Am. Mus. Nat. Hist. 4 45: 1005-1055 (see also)
References based on Global Ant Biodiversity Informatics
- Fisher B. L. 1997. Biogeography and ecology of the ant fauna of Madagascar (Hymenoptera: Formicidae). Journal of Natural History 31: 269-302.
- Fisher B. L. 1998. Ant diversity patterns along an elevational gradient in the Réserve Spéciale d'Anjanaharibe-Sud and on the western Masoala Peninsula, Madagascar. Fieldiana Zoology (n.s.)90: 39-67.
- Fisher B. L. 2003. Formicidae, ants. Pp. 811-819 in: Goodman, S. M.; Benstead, J. P. (eds.) 2003. The natural history of Madagascar. Chicago: University of Chicago Press, xxi + 1709 pp.
- Wheeler W. M. 1922. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. IX. A synonymic list of the ants of the Malagasy region. Bulletin of the American Museum of Natural History 45: 1005-1055