Polyrhachis celebensis

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Polyrhachis celebensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Cyrtomyrma
Species: P. celebensis
Binomial name
Polyrhachis celebensis
Viehmeyer, 1913

Nothing is known about the biology of Polyrhachis celebensis.

Identification

Kohout (2008) - Polyrhachis celebensis is very similar to Polyrhachis fornicata. Both species have a virtually identical petiole with slender and acute dorsal spines with their tips curved backwards, while the lateral spines are very short, reduced to mere angles. In lateral view the mesosoma of both species is quite similar, featuring a moderately convex pronotum and a distinct step in the mesosomal outline, indicating the position of the metanotal groove. However, the propodeal declivity in P. celebensis is steeply oblique, while in P. fornicata it is virtually vertical. The main difference between the species is the shape of their pronotal humeri that, in P. celebensis are somewhat angulate, while in P. fornicata they are narrowly rounded.

Kohout (2006) - Characterised by angular pronotal shoulders armed with diminutive denticles, a petiole armed with four spines (the dorsal pair rather prominent and slightly longer than the lateral pair) and black legs. In contrast, the pronotal shoulders in Polyrhachis rastellata are narrowly rounded, the petiolar spines subequal in length and the legs distinctly orange or light reddish-brown.

Keys including this Species

Distribution

Only known from the type locality (see below).

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality), Sulawesi.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Abundance

Known only from types.

Biology

Castes

Known only from workers.

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • celebensis. Polyrhachis rastellata var. celebensis Viehmeyer, 1913: 155 (w.) INDONESIA (Sulawesi). [Also described as new by Viehmeyer, 1914b: 51.] Combination in P. (Cyrtomyrma): Emery, 1925b: 208. Raised to species: Kohout, 2006b: 90.

Description

Worker

Unterscheidet sich von der Stammform nur durch die weniger abgerundeten Vorderecken des Pronotums (fast wie bei levior), die die schwache Andeutung eines ab gerundeten Zahnchens zeigen.

Type Material

Kohout (2008) - Syntype workers. INDONESIA, SULAWESI (in copal), Berlin Museum für Naturkunde der Humboldt-Universität (examined).

References