Lasiomyrma maryatiae

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 gracilinoda by the thicker petiolar node, the longer mesopleuron and the strongly produced propodeal lobe.

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

Nomenclature

 *  maryatiae. Lasiomyrma maryatiae Terayama & Yamane, 2000: 526, figs. 11-12 (w.) BORNEO.

Worker
HL 0.55 mm; HW 0.45 mm; SL 0.30 mm; CI 82; SI 67; WL 0.65 mm; PW 0.39 mm; PL 0.23 mm; PH 0.23 mm; DPW 0.14 mm; PPL 0.15 mm; PPH 0.16 mm; PPW 0.18 mm; TL 2.2 mm.

Head 1.22 times as long as wide, densely punctate, with evenly convex sides and weakly concave occipital margin in full face view. Eye 0.14 mm in maximum diameter.

Alitrunk densely punctate, with flat promesonotal and propodeal dorsa; metanotal groove shallow; propodeal spine as long as wide at base; propodeal declivity gently sloping to propodeal lobe; propodeal lobe produced posteriorly. Mesopleuron long, its maximum length distinctly longer than its length of ventral margin.

Petiole as long as high; node thick, reversed U-shaped in profile. Postpetiole higher than long, with convex dorsal margin in profile.

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

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

Type Material
Holotype. Worker, Poring (550 m), Sabah, Borneo, E. Malaysia, 17. III. 1995, Sk. Yamane leg. Tropical Biology and Conservation Unit, Malaysia Sabah University, Kota Kinabalu.

Etymology
The specific epithet is dedicated to Dr. Maryati Mohamed of Universiti Malaysia Sabah.

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.