Polyrhachis variegata

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This page should be cited as follows (rationale):
Kohout, R. J. (2007) Revision of the subgenus Aulacomyrma Emery of the genus Polyrhachis F. Smith, with descriptions of new species.. Memoirs of the American Entomological Institute 80 : 212 – 213, doi. Versioned wiki page: 2014-07-15, version 56508, https://species-id.net/w/index.php?title=Polyrhachis_variegata&oldid=56508 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Kohout2007MemoirsoftheAmericanEntomologicalInstitute80,
author = {Kohout, R. J.},
journal = {Memoirs of the American Entomological Institute},
title = {Revision of the subgenus Aulacomyrma Emery of the genus Polyrhachis F. Smith, with descriptions of new species.},
year = {2007},
volume = {80},
issue = {},
pages = {212 -- 213},
doi = {TODO},
url = {http://hdl.handle.net/10199/15380},
note = {Versioned wiki page: 2014-07-15, version 56508, https://species-id.net/w/index.php?title=Polyrhachis_variegata&oldid=56508 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - Revision of the subgenus Aulacomyrma Emery of the genus Polyrhachis F. Smith, with descriptions of new species.
A1 - Kohout, R. J.
Y1 - 2007
JF - Memoirs of the American Entomological Institute
JA -
VL - 80
IS -
UR - http://dx.doi.org/TODO
SP - 212
EP - 213
PB -
M1 - Versioned wiki page: 2014-07-15, version 56508, https://species-id.net/w/index.php?title=Polyrhachis_variegata&oldid=56508 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Kohout2007Memoirs of the American Entomological Institute80">{{Citation
| author = Kohout, R. J.
| title = Revision of the subgenus Aulacomyrma Emery of the genus Polyrhachis F. Smith, with descriptions of new species.
| journal = Memoirs of the American Entomological Institute
| year = 2007
| volume = 80
| issue =
| pages = 212 -- 213
| pmid =
| publisher =
| doi = TODO
| url = http://hdl.handle.net/10199/15380
| pmc =
| accessdate = 2020-11-24

}} Versioned wiki page: 2014-07-15, version 56508, https://species-id.net/w/index.php?title=Polyrhachis_variegata&oldid=56508 , contributors (alphabetical order): PlaziBot.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Hymenoptera
Familia: Formicidae
Genus: Polyrhachis

Name

Polyrhachis variegata Kohout, R. J., 2007Wikispecies linkPensoft Profile

  • Polyrhachis variegata Kohout, R. J., 2007, Memoirs of the American Entomological Institute 80: 212-213.

Description

Figures 39, 42, 45

Type Material

INDONESIA Guega J. L. Gressitt

Description

WORKER Dimensions of holotype: TL c. 5.54; HL 1.43; HW 1.37; CI 96; SL 1.47; SI 107; PW 1.06; MTL 1.40. Anterior clypeal margin distinctly medially emarginate; in profile clypeus very weakly convex, almost straight with rather flat but distinct basal margin. Frontal carinae sinuate, rather short, only moderately raised; frontal triangle indistinct. Sides of head convex, distinctly converging anteriorly towards mandibular bases. Eyes distinctly flat, not reaching cephalic outline in full face view. Mesosoma marginate with propodeal margins somewhat weakly defined. Pronotal humeri armed with laterally directed, broad-based teeth, margins raised and laterally continuous with pronotal margins. Promesonotal suture distinct; metanotal groove lacking. Propodeum terminating in small but distinct tuberculae. Propodeal dorsum descending into oblique declivity in uninterrupted curve. Petiole with acute, finely jagged dorsal margin and short, weakly backwards and upwards curved lateral spines; in dorsal view, dorsal petiolar margin weakly anteriorly bowed. Anterior face of first gastral segment very weakly concave with anterodorsal margin blunt, not raised above dorsum of segment. Mandibles finely longitudinally striate at bases, becoming more reticulate with several shallow pits towards masticatory borders. Clypeus with very fine, weakly V-shaped striae at base, merging into irregular rugae anteriorly. Vertex and sides of head with fine, rather flat, mostly longitudinal striae. Pronotal dorsum with striae diverging, more-or-less parallel with lateral pronotal margins; striae posteriorly convering on mesonotal-propodeal dorsum, mostly oblique on sides of mesosoma, propodeal declivity only finely shagreened. Petiole with both faces finely shagreened. Gaster with sides longitudinally striate, striae distinctly finer dorsally, first gastral tergite finely reticulate anteromedially. A few, rather short, erect hairs along outer mandibular edges, anterior clypeal margin, leading edge of antennal scapes, frontal carinae and outer surfaces of hind tibiae; a solitary hair arising from vertex. Hairs completely absent from dorsum of mesosoma, petiole and first gastral segment; only a few hairs, shorter than greatest diameter of eye, concentrated on apex and venter of gaster. Silvery, appressed and semierect, somewhat untidy pubescence in various densities on vertex, pronotal humeri, propodeal dorsum, metapleura, coxae and anterior face of petiole; pubescence virtually absent from front of head; gaster with pubescence more abundant dorsally but not obscuring underlying sculpture. Black, mandibular masticatory border dark red. Funiculi apically and legs generally dark to medium reddish-brown, tibiae and apical tarsal segments a shade lighter.

Etymology

ETYMOLOGY Named for its somewhat different appearance from that of other members of the subgenus (Latin varius, variegatus = different, different sort).

Discussion

REMARKS A rather distinct species easily separated from most others by the posteriorly wide head and distinctly flat eyes, that are situtated well away from the lateral margins of the head. The rather flat and fine sculpture, untidy silvery pubescence and notably the obliquely descending propodeal declivity are also quite distinctive.

Taxon Treatment

  • Kohout, R. J.; 2007: Revision of the subgenus Aulacomyrma Emery of the genus Polyrhachis F. Smith, with descriptions of new species., Memoirs of the American Entomological Institute 80: 212-213. doi
Link to Plazi.org

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