Metapone javana

Known only from the type nest series comprising the holotype worker, 18 paratype workers, a paratype dealate queen and 4 paratype males, collected by K. Yamauchi (5/Jan/2000, “nesting in a fallen tree in primary forest”).

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

Nomenclature

 * . Metapone javana Taylor & Alpert, 2016: 523, figs. 62-65 (w.q.m.) INDONESIA (Java).
 * Type-material: holotype worker, 18 paratype workers, 1 paratype queen, 4 paratype males.
 * Type-locality: holotype Indonesia: Java, nr Cibodas Botanical Garden, 5.i.2000, in fallen tree, primary forest (K. Yamauchi); paratypes with same data.
 * Type-depositories: MZBJ (holotype); ANIC, BMNH, CASC, MCZC, MHNG, MZBJ, SIZK (paratypes).
 * Distribution: Indonesia (Java).

Worker
(holotype, smallest paratype, largest paratype (ranked by HW): TL: ca. 8.95, 6.4, 9.3; HL: 2.12, 1.47, 2.13; HW: 1.52, 1.05, 1.57; CI: 72, 71, 74; PMW: 1.11, 0.72, 1.12; MSL: 2.31, 1.55, 2.40; PetL: 0.69, 0.46, 0.70; PetW: 0.60, 0.47, 0.62; PetH: 1.05, 0.75, 1.10; PpetL: 0.63, 0.46, 0.66; PpetW: 0.80, 0.58, 0.82; PpetH: 0.85, 0.60, 0.90; GW 1.58, 1.15, 1.66.

General and diagnostic features as in the key to Asian species and the accompanying figures. Clypeus rostrate, transverse anterior border straight, without accessory denticles. Eyes relatively large, minutely multifaceted, maximum diameters subequal to the maximum width of an apical antennomere. Subpetiolar lamella a translucent, anteriorly-positioned hook-like structure, much as described above for M. quadridentata. Profile of subpetiolar edge behind the lamella curving posteroventrally on a longer radius than in M. quadridentata to meet the subpetiolar angle, which is drawn to an acute point in side view. Posterior subpetiolar surface acutely triangular in oblique view, its face minutely concave, with the outer edges distinctly margined but not carinate, sloping so strongly forwards that its ventral profile almost aligns with the subpetiolar edge. Subpostpetiolar process slightly extended, acutely triangular in lateral view.

Type Material
Indonesia: java: near Cibodas Botanical Garden [6°44′S, 107°E]. MZBI: holotype worker, 6 paratype workers, paratype dealate gyne, 2 paratype males. : 2 paratype workers, 2 paratype males. Single paratype workers in, , IZUK, ,.

References based on Global Ant Biodiversity Informatics

 * 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.