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Polyrhachis montana
| Polyrhachis montana | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Polyrhachis |
| Subgenus: | Polyrhachis |
| Species group: | bihamata |
| Species: | P. montana |
| Binomial name | |
| Polyrhachis montana Hung, 1970
| |
This species is known from the Philippines and from Borneo from the original collections made by E. Mjöberg at Mt Murud and Mt Dulit in Sarawak.
Identification
A member of the bihamata group of the subgenus Polyrhachis.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo (type locality), Indonesia, Malaysia, Philippines.
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
Sexuals and immature stages unknown.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- montana. Polyrhachis montana Hung, 1970: 23, figs. 16-22 (w.) BORNEO.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype: HW 2.20 mm, HL 2.43 mm, CI 90, SL 3.00 mm, SI 141, PW 1.13 mm, MPL 2.60 mm, MTL 4.13 mm, PSEI 200, PH 1.90 mm. Mandibles with 5 teeth sequentially reducing in length, the apical is about twice as long as the basals. Clypeus convex, slightly carinated. Head, excluding the mandibles, somewhat longer than broad, slightly rounded. Median ocellus present. No lateral ocelli. Alitrunk more or less rounded. Pronotum slightly marginated with two spines rather stout at base pointing outwards and curved with the tips slightly pointing backwards. Mesonotum with two widely separated pyramidal spines raising upwards, outwards and bending backwards at an angle greater than 90 degrees. Metanotal groove obscure. Propodeum with the basal face about three times as long as the declivity. Declivity with one inclined ridge on each side forming an isosceles triangle with the top angle and the bottom leg notched. No distinct ridge between the basal face and the declivity. Petiole columnar, but rather flattened, bearing two long hook-shaped spines diverging widely from their bases. Gaster slightly elliptical with the tergite of the first segment covering about two-fifths of the gaster. Body densely covered with light brown suberect hairs. Antennae and head very dusky red. Mandibles dusky red. Alitrunk and petiole moderate reddish-brown. Pronotal, mesonotal and petiolar spines black at tip. Legs dark reddish-brown. Gaster dark reddish-brown with the first segment slightly lighter.
Kohout (2014) - (paratypes): TL c. 10.73 – 10.99; HL 2.37 – 2.52; HW 2.12 – 2.24; CI 89 – 90; SL 2.87 – 3.17; SI 135 – 141; PW 1.10 – 1.16; PeH 2.07 – 2.17; PeI 86-89; MTL 4.03 – 4.38 (4 measured).
Type Material
Kohout (2014) - Holotype and paratype workers. Type locality: BORNEO, SARAWAK, Mt Murud, (E. Mjöberg), Museum of Comparative Zoology (Type 31773), National Museum of Natural History, Bernice P. Bishop Museum (examined).
References
- General, D.E.M. 2021. A preliminary checklist of the ants (Hymenoptera: Formicidae) of the Mt. Pantaron Range, Bukidnon Province, Mindanao Island, Philippines. Halteres, 12:4-14 (doi:10.5281/ZENODO.5371745).
- Hung, A. C. F. 1970. A revision of ants of the subgenus Polyrhachis Fr. Smith (Hymenoptera: Formicidae: Formicinae). Orient. Insects 4: 1-36 (page 23, figs. 16-22 worker described)
- Kohout, R.J. 2014. A review of the subgenus Polyrhachis (Polyrhachis) Fr. Smith (Hymenoptera: Formicidae: Formicinae) with keys and description of a new species. Asian Myrmecology 6, 1–31.
References based on Global Ant Biodiversity Informatics
- Hung A. C. F. 1970. A revision of ants of the subgenus Polyrhachis Fr. Smith (Hymenoptera: Formicidae: Formicinae). Oriental Insects 4(1): 1-36.
- Kohout R. J. 2014. A review of the subgenus Polyrhachis (Polyrhachis) Fr. Smith (Hymenoptera: Formicidae: Formicinae) with keys and description of a new species. Asian Myrmecology 6: 1-31.
- Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
- Robson Simon Database Polyrhachis -05 Sept 2014