Metapone krombeini

Nothing is known about the biology of .

Identification
(In gynes & workers) Frons, cheeks, clypeus, promesonotal dorsum and sides of pronotum and petiole distinctly and regularly longitudinally or diagonally finely striate. Clypeal projection relatively a little shorter and narrower than in the alternative. Petiolar node relatively short and narrow. Apex of subpetiolar extension inclined posteriorly, broadly rounded (Micronesia, mainland New Guinea, New Britain, gyne and worker).

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

Nomenclature

 * . Metapone krombeini Smith, M.R. 1947d: 76 (q.) NEW GUINEA (Papua New Guinea).
 * Type-material: holotype queen.
 * Type-locality: Papua New Guinea: Milne Bay, K.B. Mission, 26-28.iii.1944 (K.V. Krombein).
 * Type-depository: USNM.
 * Status as species: Chapman & Capco, 1951: 114; Gregg, R.E. 1958: 120; Kusnezov, 1960a: 126; Bolton, 1995b: 258; Taylor & Alpert, 2016: 525 (redescription).
 * Distribution: Indonesia (Irian Jaya), Papua New Guinea.

Worker
Taylor and Alpert (2016) - General and diagnostic features as in original description (Smith, 1947) and figures. Similar to gynes from New Guinea and Micronesia of the smaller  Metapone truki, with differences itemised in the key to species above.

Queen
Taylor and Alpert (2016) - TL: 3.36, HL: 1.72, HW (across eyes): 1.22, CI: 71, CpL: 0.65, CpI: 38, WL: 2.84, PetL: 0.78, PetW: 0.62, PetH: 0.98, PpetL: 0.64, PpetW: 0.79, PpetH: 0.74, GW: 1.34.

General features as in original description (Smith, 1947) and Figs 71–75. Similar to gynes from New Guinea and Micronesia of the smaller  Metapone truki. The two species differ as specified in couplet 5 of the key to Melanesian species above. Colour dark brown, the gaster reddish-brown.

Type Material
Gyne: New Guinea, Milne Bay [10°S, 150°E].

References based on Global Ant Biodiversity Informatics

 * Gregg R. E. 1958. Two new species of Metapone from Madagascar (Hymenoptera: Formicidae). Proceedings of the Entomological Society of Washington 60: 111-121.
 * 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.
 * Kusnezov N. 1960. La posición sistemática del género Metapone Forel (Hymenoptera, Formicidae). Acta Zoologica Lilloana 18: 119-126.
 * Smith M. R. 1947. A new species of Metapone Forel from New Guinea (Hymenoptera, Formicidae). Proceedings of the Entomological Society of Washington 49: 75-77.
 * Taylor R. W., and G. D. Alpert. 2016. The myrmicine ant genus Metapone Forel (Hymenoptera: Formicidae): a global taxonomic review with descriptions of twelve new species. Zootaxa 4105(6): 501-545.