Polyrhachis amana

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Polyrhachis amana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Myrmhopla
Species: P. amana
Binomial name
Polyrhachis amana
Smith, F., 1861

Polyrhachis amana casent0103190 profile 1.jpg

Polyrhachis amana casent0103190 dorsal 1.jpg

Specimen labels

Specimens have been collected from fogging samples in natural forest.

Identification

A member of the Polyrhachis mucronata species group.

Kohout (2008) - The specimens from Dumoga-Bone (Sulawesi) are larger than the syntype examined (HL 1.90-2.00 versus HL 1.75 in a syntype) and differ in a number of characters. The clypeus in lateral view is distinctly sinuate in modern specimens, while in the syntypes it is virtually straight anteriorly and deeply impressed basally. The lateral outline of mesosoma of the modern specimens is moderately convex with its highest point located just behind the promesonotal suture. The mesosomal outline in the syntypes is more strongly convex with the highest point at the promesonotal suture itself. In the modern specimens the pronotal and propodeal spines are more divergent, the base of petiolar node in profile is broader and the petiolar spines are less elevated and almost straight. In the syntype the tips of the petiolar spines are slightly bent downwards. The colour of the body and appendages in modern specimens is uniformly black, with only the coxae and the proximal ends of femora reddish-brown. The body and most of the antennal scapes of the syntype are black, with the legs and antennal funiculi generally light to medium yellowish-brown. In spite of these differences I consider the modern material and syntype conspecific.

Keys including this Species

Distribution

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

Biology

Castes

Nomenclature

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

  • amana. Polyrhachis amanus Smith, F. 1861b: 41, pl. 1, fig. 13 (w.) INDONESIA (Sulawesi). Combination in P. (Myrmhopla): Emery, 1925b: 194.

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) - Syntype workers. Type locality: INDONESIA, SULAWESI, Tonadano (A. R. Wallace), Oxford University Museum of Natural History, The Natural History Museum (examined).

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Polyrhachis amanus

One worker syntype in Oxford University Museum of Natural History. Labelled “Tond.” (= Tondano, Sulawesi) and with the figure “15” written in pencil on the stage card; also with a Donisthorpe type-label.

One worker syntype in The Natural History Museum. Labelled “Tond. 15,” and with the figure “15” also written in pencil on the stage card.

References