Technomyrmex albicoxis

Nothing is known about the biology of .

Identification
Bolton (2007) - A member of the T. cheesmanae complex in the Technomyrmex albipes group. Originally described as a variety of Technomyrmex cheesmanae, but albicoxis has fewer setae on the head and all of them are shorter than the maximum diameter of the eye. It also has fewer setae on the mesosoma and a propodeum whose dorsal length is greater than the depth of the declivity to the spiracle. T. albicoxis keys out with Technomyrmex mixtus, a member of the same species complex. The two are easily separated by colour of the middle and hind coxae and the other characters given in the key.

A single specimen from Lakekamu Basin has the propodeum more angular than the type-series but the difference currently seems insignificant for consideration as a species-rank character.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia, New Guinea.

Nomenclature

 *  albicoxis. Technomyrmex cheesmanae var. albicoxis Donisthorpe, 1945b: 58 (w.) NEW GUINEA. Raised to species: Bolton, 2007a: 67.

Worker
Bolton (2007) - TL 2.6 - 2.8, HL 0.62 - 0.64, HW 0.56 - 0.58, SL 0.66 - 0.68, PW 0.39 - 0.43, WL 0.82 0.90 (4 measured). Indices: CI 90 - 91, S1 117 - 121, OI 27 - 29, EPI 77 - 81, DTI 135 - 138.

Frontal carina with 2 setae: in profile the posterior at the level of the anterior margin of the eye. Dorsum of head behind this with 1 - 2 pairs of shorter setae above the eye and more posteriorly, about half-way between level of posterior margin of eye and posterior margin of head, is a final pair of setae, located well in front of the posterior margin; posterior margin itself without setae. All dorsal setae on the head are shorter than the maximum diameter of the eye. With head in full-face view the anterior clypeal margin with a feeble shallow median indentation; sides of head shallowly convex and the posterior margin shallowly indented medially. Eyes located in front of midlength (EPI above) and their outer margins just break the outline of the sides of the head in full-face view. With mesosoma in profile the mesonotal outline forms a more or less flat shallow slope but has a short declivitous face posteriorly. Number of setal pairs on mesosoma: pronotum 2 - 3; mesonotum 1 - 2, located posteriorly just before the short declivity; propodeal dorsum 0; lateral margin of propodeal declivity 2 - 3. Propodeum in profile with the dorsum shallowly convex and rounding into the declivity through a curve. Straight-line length of propodeal dorsum in profile is slightly greater than depth of declivity to the spiracle. Gastral tergites 1 - 4 each with numerous setae, distributed everywhere on the sclerites; maximum length of setae on first gastral tergite about equal to the maximum diameter of the eye. Head, mesosoma and gaster blackish brown. Middle and hind coxae, trochanters and tarsi yellow. Femora brown except basally, close to trochanters, where they are yellow. Tibiae variable within series: often basal one-quarter to one-third yellow, remainder brown, but sometimes with almost all of tibiae yellow.

Type Material
Bolton (2007) - Holotype and paratype workers, Indonesia: Irian Jaya (“North Dutch New Guinea”), Waigeu Island, Camp Nok, 2500 ft, v.1938 (I .E. Cheesman) [examined].

References based on Global Ant Biodiversity Informatics

 * Bolton B. 2007. Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste. Contributions of the American Entomological Institute 35(1): 1-150.
 * Bolton, B. "Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste." Contributions of the American Entomological Institute 35, no. 1 (2007): 1-149.
 * CSIRO Collection
 * Celini L., V. Roy, J. Delabie, S. Frechault, A. Pando, and P. Mora. 2014. Première mention de Technomyrmex difficilis (Forel, 1892) à Saint-Barthélemy, Petites Antilles (Hymenoptera, Formicidae, Dolichoderinae). Bulletin de la Société entomologique de France 119 (3), 2014 : 293-298.
 * Donisthorpe H. 1945. A new species and a new variety of Technomyrmex Mayr (Hym., Formicidae) from New Guinea. Entomologist's Monthly Magazine 81: 57-58.
 * Janda M., G. D. Alpert, M. L. Borowiec, E. P. Economo, P. Klimes, E. Sarnat, and S. O. Shattuck. 2011. Cheklist of ants described and recorded from New Guinea and associated islands. Available on http://www.newguineants.org/. Accessed on 24th Feb. 2011.
 * Klimes P., P. Fibich, C. Idigel, and M. Rimandai. 2015. Disentangling the diversity of arboreal ant communities in tropical forest trees. PLoS ONE 10(2): e0117853. doi:10.1371/journal.pone.0117853
 * Lucky A., L. E. Alonso, E. Sarnat, and J. Hulr. 2015. Ants and scolytine beetles. In: Richards, S.J. and N. Whitmore (editors) 2015. A rapid biodiversity assessment of Papua New Guinea's Hindenburg Wall region. Wildlife Conservation Society Papua New Guinea Program. Goroka, PNG.
 * Shattuck S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112: i-xix, 1-241.