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Polyrhachis unicuspis
| Polyrhachis unicuspis | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Polyrhachis |
| Subgenus: | Myrmothrinax |
| Species: | P. unicuspis |
| Binomial name | |
| Polyrhachis unicuspis Emery, 1898
| |
Specimens have been collected from fogging samples in cacao and natural forest.
Identification
A member of the Polyrhachis thrinax species group.
Kohout (2008) - Polyrhachis unicuspis is characterised by a relatively long middle petiolar spine and rudimentary lateral spines. However, in the available queens, the lateral spines are developed as short, but distinct and acute spines.
The two thrinax-group species known from Sulawesi are distinguished as follows:
- Frontal carinae distinctly elevated; propodeal spines upturned; lateral petiolar spines shorter than middle spine, but always present; body generally very dark reddish-brown (in copal) . . . . . Polyrhachis cincta
- Frontal carinae with margins only narrowly and weakly elevated; propodeal spines horizontal; lateral petiolar spines very short, often rudimentary; body generally very light to medium yellowish-or reddish-brown . . . . . Polyrhachis unicuspis
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia (type locality), Sulawesi.
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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- unicuspis. Polyrhachis unicuspis Emery, 1898b: 240, fig. 13 (w.) INDONESIA (Sulawesi). Combination in P. (Myrmothrinax): Emery, 1925b: 184.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Type Material
Kohout (2008) - Holotype worker. INDONESIA, SULAWESI, Toli-Toli (H. Fruhstorfer), Museo Civico di Storia Naturale, Genoa (examined).
References
- Emery, C. 1898b. Descrizioni di formiche nuove malesi e australiane. Note sinonimiche. Rend. Sess. R. Accad. Sci. Ist. Bologna (n.s.) 2: 231-245 (page 240, fig. 13 worker described)
- Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 184, Combination in P. (Myrmothrinax))
- Kohout, R.J. 2008a. A review of the Polyrhachis ants of Sulawesi with keys and descriptions of new species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum. 52:255-317.
References based on Global Ant Biodiversity Informatics
- Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
- Emery C. 1898. Descrizioni di formiche nuove malesi e australiane. Note sinonimiche. Rendiconti delle Sessioni della Reale Accademia delle Scienze dell'Istituto di Bologna (n.s.)2: 231-245.
- Emery C. 1901. Formiciden von Celebes. Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 14:565-580.
- Kohout, R. J. 2008. A review of the Polyrhachis ants of Sulawesi with keys and descriptions of new species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum 52:255-317.