Metapone krombeini

Identification
(In gynes & workers) Frons, cheeks, clypeus, promesonotal dorsum and sides of pronotum and petiole distinctly and regularly longitudinally or diagonally finely striate (Figs 71–80). Clypeal projection relatively a little shorter and narrower than in the alternative (Figs 71, 73, 76, 78). Petiolar node relatively short and narrow (Figs 72, 74, 75, 77, 79, 80). Apex of subpetiolar extension inclined posteriorly, broadly rounded (Figs 72, 75, 77, 80) (Micronesia, mainland New Guinea, New Britain, gyne and worker).

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

Nomenclature

 *  krombeini. Metapone krombeini Smith, M.R. 1947d: 76 (q.) NEW GUINEA.

Description
Worker diagnosis. General and diagnostic features as in original description (Smith, 1947) and Figs 76–80. Similar to gynes from New Guinea and Micronesia assigned below to the smaller M. truki, with differences itemised in the key to species above. Gyne diagnosis. General features as in original description (Smith, 1947) and Figs 71–75. Similar to gynes from New Guinea and Micronesia assigned below to the smaller M. truki. The two species differ as specified in couplet 5 of the key to Melanesian species above. Colour dark brown, the gaster reddish-brown, 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.