Diacamma carbonarium

Identification
D i a g n o s i s : Rather large species (TL 11.9–14.2mm). Trunk black, without metallic shimmer. Mandibles dark brown to black. Antennae and legs black. Standing setae abundant, on petiole and gaster distinctly longer than on mesosoma; fine pilosity strongly developed. Trunk strongly striate from genae to gaster tergite 1. Head (Fig. 66) relatively short, sides posteriorly of eye strongly convex. Posterior of head longitudinally striate until narrowly truncated hind margin; occipital margin ventrally terminating in short, blunt teeth (Fig.64). Eyes small. Clypeus (Fig.66) entirely punctured, apex rounded. Mandible with fine striation. Pronotum (Fig.65) with transverse-elliptical rugae. Striation on propodeum horizontal (Fig. 64). Petiole (Figs.64, 65) very stout, its teeth relatively short; subpetiolar process shallowly concave between short anterior and posterior corners. Gaster tergite 1 (Figs. 64, 65) with coarse semi-circular striation.

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

Nomenclature

 *  carbonarium. Diacamma carbonarium Laciny, Pal & Zettel, 2015: 131, figs. 57, 64-67 (w.) PHILIPPINES (Luzon I.).