Lasiomyrma gracilinoda

Known only from the holotype, nothing is known about this ant's biology.

Identification
Terayama & Yamane (2000) - This species is distinguished from Lasiomyrma gedensis by the straight propedeal dorsum, the absence of an angle of anterior slope of petiolar node and the concave occipital margin of head in full face view, and from Lasiomyrma maryatiae by the thinner petiolar node, the shorter mesopleuron and the weakly produced propodeal lobe.

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

Nomenclature

 *  gracilinoda. Lasiomyrma gracilinoda Terayama & Yamane, 2000: 526, figs. 9-10 (w.) BORNEO.

Worker
HL 0.56 mm; HW 0.48 mm; SL 0.31 mm; CI 84; SI 66; WL 0.68 mm; PW 0.40 mm; PL 0.21 mm; PH 0.23 mm; DPW 0.16 mm; PPL 0.15 mm; PPH 0.18 mm; PPW 0.20mm; TL 2.1 mm.

Head 1.17 times as long as wide, coarsely punctate, with very weakly concave occipital margin in full face view; sides behind eyes subparallel. Eye 0.18 mm in maximum diameter.

Alitrunk densely punctate, with largely straight promesonotal dorsum excepting the posterior portion weakly convex, and straight propodeal dorsum; metanotal groove shallow. Mesopleuron rather short, its maximum length slightly longer than its length of ventral margin. Propodeal spine thin, longer than wide at base; propodeal declivity steep; propodeal lobe weakly produced posteriorly.

Petiole slightly higher than long, with a thin node in profile; node reversed V-shaped with a bluntly produced dorsum. Postpetiole slightly longer than high, with convex dorsal margin in profile.

Gaster with shallow small punctures that are moderately spaced, in dorsal view 0.49 mm in maximum width.

Body reddish brown; mandible and antenna yellow; legs brown.

Type Material
Holotype. Worker, Poring (600 malt.), Kinabalu Park, Sabah, Borneo, Malaysia, 29. X. 1996, T. Kikuta leg. Tropical Biology and Conservation Unit, Malaysia Sabah University, Kota Kinabalu.

Etymology
Named after its thin petiolar node in profile.

References based on Global Ant Biodiversity Informatics

 * Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
 * Terayama M. ; and S. Yamane. 2000. Lasiomyrma, a new stenammine ant genus from southeast Asia (Hymenoptera: Formicidae). Entomol. Sci. 3: 523-527
 * Terayama, M., and S. Yamane. "Lasiomyrma, a new stenammine ant genus from Southeast Asia (Hymenoptera: Formicidae)." Entomological Science 3, no. 3 (2000): 523-527.