Polyrhachis shixingensis

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Polyrhachis shixingensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Campomyrma
Species: P. shixingensis
Binomial name
Polyrhachis shixingensis
Wu, J. & Wang, C., 1995

Identification

A member of the xiphias species-group. Kohout (2013) - Polyrhachis shixingensis is rather similar to Polyrhachis hashimotoi and Polyrhachis xiphias, with differences between all three species discussed in remarks section under P. hashimotoi.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: China (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Males are present in the collection of KFBG but have not been described.

Nomenclature

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

  • shixingensis. Polyrhachis shixingensis Wu & Wang, 1995: 166, figs. 334, 348, 351 (w.) CHINA. Kohout, 2013: 23, figs. 10, 12, 13 (q.).

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Kohout (2013):

Worker

Dimensions: TL c. 6.45-7.16; HL 1.56-1.81; HW 1.47-1.62; CI 88-93; SL 1.59-1.76; SI 108-112; PW 0.87-1.03; MTL 1.72-1.93 (6 measured).

Queen

Dimensions: TL c. 9.47; HL 2.25; HW 1.87; CI 83; SL 1.87; SI 100; PW 1.50; MTL 2.18 (1 measured)

Queen very similar to worker with usual characters of full sexuality, including three ocelli, complete thoracic structure and wings. Eyes larger than in worker, in full-face view marginally exceeding lateral cephalic outline. Pronotal humeri bluntly angular with anterior margins weakly indicated for short distance towards pronotal collar. Mesoscutum in lateral view with relatively low, widely rounded anterior margin and posteriorly flat dorsum; median line indistinct; parapsides flat. Mesoscutellum weakly convex, only marginally elevated above dorsal plane of mesosoma, Propodeal dorsum weakly transversely convex with lateral margins converging posteriorly and terminating in somewhat dorsolaterally flattened, broadly based, propodeal spines. Petiole identical to worker with marginally shorter spines.

Sculpturation of head similar to worker, finely reticulate-punctate; mesoscutum irregularly, rather coarsely rugose, sculpture somewhat longitudinally directed posteriorly; propodeal dorsum, including spines, finely reticulate-punctate. Gaster shagreened, rather highly polished.

Anterior clypeal margin with several longer, golden setae medially and numerous shorter setae fringing margin laterally. Head, including clypeus, with numerous golden, anteriorly inclined, paired hairs. Mesoscutum with only two pairs of semierect, medium length hairs. Gaster, except dorsum of first tergite, with numerous posteriorly inclined, relatively long, golden hairs along posterior margins of segments and around apex. Very short, appressed, silvery or pale golden pubescence only very sparingly distributed over most body surfaces.

Colour virtually identical to that in worker.

Type Material

Kohout (2013) - Polyrhachis shixingensis Wu & Wang, 1995: 166, 200, Figs. 334, 348, 351. Holotype and paratype workers. Type locality: China, Guangdong Prov., Shixing County, Chebaling Natural Conservation Area (Lu Chuanchuan), RIFP.

References