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Polyrhachis fulakora
| Polyrhachis fulakora | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Polyrhachis |
| Subgenus: | Cyrtomyrma |
| Species: | P. fulakora |
| Binomial name | |
| Polyrhachis fulakora Mann, 1919
| |
Nothing is known about the biology of Polyrhachis fulakora
Identification
Although described as a variety of Polyrhachis rastellata, Polyrhachis fulakora is most similar to Polyrhachis ugiensis also from the Solomons. I have directly compared numerous syntypes of both species and believe that they represent separate, although very similar, species. In outline, the pronotal dorsum of Polyrhachis ugiensis is much more convex, especially anteriorly, where it rises from the pronotal collar almost vertically for a short distance and then continues in a convex outline to the promesonotal suture. In contrast, the pronotal dorsum in Polyrhachis fulakora is only weakly convex from the pronotal collar to the promesonotal suture. Also, the lateral petiolar spines in Polyrhachis ugiensis are greatly reduced, while the petiolar spines in Polyrhachis fulakora are more-or-less subequal. Both species differ from the closely allied Polyrhachis johnsoni in having the greatest width of the pronotal dorsum at, or about, the middle of its length. In Polyrhachis johnsoni the greatest width of the pronotal dorsum is across, or just below the humeri. (Kohout 2006)
Keys including this Species
Distribution
Endemic to the Solomon Islands.
Distribution based on Regional Taxon Lists
Indo-Australian Region: Solomon Islands (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 Polyrhachis fulakora. Worker. Specimen code casent0905542. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by MSNG, Genoa, Italy. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- fulakora. Polyrhachis (Cyrtomyrma) rastellata var. fulakora Mann, 1919: 389 (w.) SOLOMON IS. Raised to species: Kohout, 2006b: 139.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Length 6.5 mm.
A very large series of workers from many colonies agree with rastellata in structure, having the pronotum broadest in front and with rounded humeri, the epinotum entirely without spines and the lateral spines of the petiole well developed and acute, but differ in the color of the legs, which are very dark reddish brown, instead of blood-red. This difference is constant throughout the series and warrants this variety.
Type Material
Syntype workers Museum of Comparative Zoology, National Museum of Natural History and Queensland Museum - as reported by Kohout (2006).
Type Locality Information
SOLOMON IS, Ysabel I., Fulakora, col. W.M. Mann.
References
Kohout, R. J. 2006. Review of Polyrhachis (Cyrtomyrma) Forel (Hymenoptera: Formicidae: Formicinae) of Australia, Borneo, New Guinea and the Solomon Islands with descriptions of new species. Memoirs of the Queensland Museum. 52:87-146.
Mann, W.M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology at Harvard College 63: 273-391.
References based on Global Ant Biodiversity Informatics
- Kohout R.J. 2006. Review of Polyrhachis (Cyrtomyrma) Forel of Australia, Borneo, New Guinea and the Solomon Islands with descriptions of new species. Memoirs of the Queensland Museum 52: 87-146.
- Mann W. M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology 63:273-391.
- Mann, W.M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology of Harvard College 63: 273-391
- Wheeler W.M. 1935. Check list of the ants of Oceania. Occasional Papers of the Bernice Pauahi Bishop Museum 11(11):1-56.