Dilobocondyla rufobrunnea

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

Nomenclature

 * . Dilobocondyla chapmani subsp. rufobrunnea Wheeler, W.M. 1935b: 43 (w.q.m.) PHILIPPINES (Negros I.).
 * Type-material: 1 syntype worker, 1 syntype queen, 1 syntype male.
 * Type-locality: Philippines: Negros Oriental, Victoria (W.D. Pierce).
 * Type-depository: MCZC.
 * Subspecies of chapmani: Chapman & Capco, 1951: 116; Baltazar, 1966: 254; Bolton, 1995b: 171.
 * Status as species: Varghese, 2006a: 25 (in list).
 * Distribution: Philippines (Negros).

Worker
Length 3.8 mm.

Differing from the typical chapmani in its slightly larger size, slightly more opaque surface throughout and in coloration, being dark brown, with the pronotum above paler and more rufous, the mandibles, except the teeth, the sides of the clypeus, scapes, first funicular joint and tarsi beyond their first joint, brownish yellow.

Queen
Length 4.5 mm.

Very similar to the worker, but the gular surface of the head and the thorax are paler and more reddish than the head and gaster, the postscutellum and posterior portion of the mesonotum infuscated. Wings shorter than the body, whitish, with pale brown veins and dark brown peterostigma. The radial cell is short and closed, there is a single cubital but no discoidal cell.

Male
Length 4.3 mm.

Head broader than long, transversely elliptical, with large eyes and moderately large ocelli. Cheeks short and strongly converging anteriorly. Mandibles well-developed, flattened, 5-toothed, the two basal teeth small. Clypeus broad, feebly convex, its anterior border broadly rounded, entire, sinuate on each side. Frontal area large; frontal carinate short, low and subparallel. Antennre long, 13-jointed; scapes very short, only about twice as long as broad; first funicular slightly longer than broad, not swollen, remaining joints cylindrical, the second twice as long as the scapes, the remaining joints shorter, except the last, which is nearly as long as the second and somewhat swollen. Thorax through the mesonotum somewhat broader than the head; pronotum very short, mesonotum large and convex, with very pronounced notauli (Mayrian furrows); epinotum higher than long, with subequal base and declivity, the former distinctly convex, the latter flattened, perpendicular and marginate on each side. Petiole and post-petiole similar to those of the worker, but more slender. Gaster small, elongate-elliptical; genitalia exserted, the stipites rather large, lobular, rounded at the tip. Legs long and slender but the femora distinctly incrassated in the middle, though less so than in the worker.

Somewhat shining; mandibles finely reticulate; head longitudinally rugulose, the clypeus and frontal area more finely and more regularly than the cheeks, the rugules of which curve around the antennal fossae. The interrugal spaces are sharply and finely reticulate as in the worker. Sculpture of thorax similar; pronotum transversely, mesonotum longitudinally rugulose; scutellum more coarsely reticulate-rugulose, pleurae and epinotal declivity smoother. Petiole, postpetiole and gaster shining, smoother, only superficially and microscopically reticulate.

Pilosity longer than in the worker, the hairs tapering and flexuous.

Black; scapes, gaster, coxre and femora dark brown; base of gaster above somewhat infuscated; tibiae, tarsi and funiculi white; first funicular joint strongly, tibiae feebly tinged with reddish brown; wings whitish, veins colorless, pterostigma pale brown.

Type Material
Single worker, female and male specimens collected by Mr. W. D. Pierce at Victoria, Negros Oriental, Philippines, and received from Dr. J. W. Chapman.