Dilobocondyla carinata

Nothing is known about the biology of .

Identification
Zettel and Bruckner (2013) - Worker: Brown; with yellow mark on gaster tergite 1. Posterior margin of head concave. Frontal carinae strong, reaching posterior corners of head. Sculpture of head and mesosoma coarse; interspaces mostly shiny. Petiole with transverse carina. Postpetiole dorsally regularly striated.

Dilobocondyla carinata can be immediately distinguished from all congeners by the petiole bearing a dorsal transverse ridge. The presence of this ridge results in a low PtI of 167, although the petiole is slender as in other species of the D. chapmani group.

Key to Dilobocondyla Species of the Philippines

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

Castes
Known only from the worker caste.

Nomenclature

 *  carinata. Dilobocondyla carinata Zettel & Bruckner, 2013: 145, figs. 4, 10, 16 (w.) PHILIPPINES.

Worker
Holotype: TL 4.35; HW 1.09; HL 1.14; CI 96; SL 0.70; SI 64; PnW 0.72; PtL 0.51; PtH 0.31; PtW 0.24; PtI 167; PpL 0.37; PpH 0.38; PpW 0.37. Paratype: TL 4.20; HW 1.06; HL 1.11; CI 95; SL 0.68; SI 64; PnW 0.71; PtL 0.50; PtH 0.30; PtW 0.24; PtI 167; PpL 0.36; PpH 0.37; PpW 0.37.

Colour: Head with mandibles, mesosoma and legs, petiole and postpetiole brown; dorsum of head, sides of mesosoma, and node of petiole slightly infuscated; trochanters and distal tarsomeres pale. Gaster blackish brown, tergite 1 with yellow mark anteriorly. Antenna dark brown except yellow scape.

Structures: Head with almost regular coarse striation, except more or less vermiculated rugae behind eyes. Interspaces shiny, almost smooth, at most with very superficial microsculpture. Posterior margin of head concave; hind corners angular. Frontal carinae and antennal scrobes reaching hind corners. Clypeus with five longitudinal rugae; interspaces weakly micro-reticulated.

Mesosoma almost entirely reticulated; coarse rugae forming large meshes; an imaginary line between pronotal corners transecting nine meshes; meso- and metapleura smooth, as shiny as all interspaces. Petiole dorsally unsculptured, laterally with longitudinal rugae; its outline in lateral view unique, anteriorly and posteriorly slender, at mid-length raised to a dorsal transverse ridge; anterodorsal and posterodorsal outline slightly concave; anteroventral tooth small, triangular. Postpetiole in lateral aspect subtriangular, with narrowly rounded apex; both anterodorsal and posterodorsal surface with regular coarse striation. Gaster tergite 1 at base with very dense fine striation that gradually changes to a fine reticulum where the yellow mark ends.

Etymology
The Latin adjective carinatus (= keeled) refers to the characteristic carina on the petiole.