Myopias breviloba

Identification
Female. Length 5.8 mm.

Head, excluding the mandibles, a little broader than long, slightly broader behind than in front, with feebly rounded sides and feebly and broadly excised occipital border. Eyes rather convex, longer than their distance from the anterior corners of the head. Ocelli small and close together. Mandibles distinctly shorter than the head, slender and terete at the base, dilated and flattened apically, their inner borders with three separated teeth; the most basal merely a low, rounded convexity, the others stronger and decidedly acute. Lobe of clypeus very short, rectangular, more than twice as broad as long, its anterior border slightly concave. Oral border of clypeus with a median, slender, truncated tooth. Frontal groove strongly impressed. Antennal scapes not reaching to the posterior border of the head; funiculi with distinctly 4-joined club; joints 2-7 slightly broader than long; joints 8-10 longer than broad; terminal joint nearly as long as the three remaining joints of the club together. Thorax 2 1/2 times as long as broad, parallel-sided, distinctly narrower than the head, flattened above; pronotum, excluding the neck, about as long as the mesonotum; base and declivity of epinotum forming nearly a right angle in profile, the declivity slightly concave. Petiole, post-petiole, and gaster together but little longer than the thorax, the petiole truncated anteriorly and posteriorly, higher than long, from above broader than long and broader behind than in front, with rounded dorsal and lateral surfaces, its ventral surface in front with a blunt, compressed tooth. Postpetiole rather strongly constricted behind, its anteroventral surface with an acute, downwardly directed tooth. Sting long and compressed. Smooth and shining; head, thorax, and abdomen with small, sparse, inconspicuous, piligerous punctures. Hairs yellow, bristly, pointed, of uneven length; sparser on the body and legs, suberect on the former, oblique on the latter; more abundant but short on the antennae. Deep red; antennae, legs, and mandibles slightly yellowish red. Wings uniformly brown, with dark brown veins and conspicuous black pterostigma.

Described from a single specimen.

"This does not seem to be the female of any of the described species, nearly all of which are known from worker specimens. It is evidently most closely related to the Papuan Myopias levigata Emery, the female of which is still to be discovered."

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

Nomenclature

 * . Trapeziopelta breviloba Wheeler, W.M. 1919e: 143 (q.) BORNEO (East Malaysia: Sabah).
 * Type-material: holotype queen.
 * Type-locality: East Malaysia:Borneo, Sabah, Sandakan (C.F. Baker).
 * Type-depository: MCZC.
 * Combination in Myopias: Bolton, 1995b: 269.
 * Status as species: Wheeler, W.M. & Chapman, 1925: 69; Wheeler, W.M. 1937a: 21; Chapman & Capco, 1951: 75; Baltazar, 1966: 247; Bolton, 1995b: 269; Pfeiffer, et al. 2011: 56; Probst, Guénard & Boudinot, 2015: 204 (in key); Jaitrong, Wiwatwitaya & Yamane, 2020a: 618 (in key).
 * Distribution: Indonesia (Krakatau), Malaysia (Sabah), Philippines (Basilan).

References based on Global Ant Biodiversity Informatics

 * Abe T., S. Yamane, and K. Onoyama. Ants collected on the Krakatau Islands 100 years after the great eruptions. Biogeography 14: 65-75.
 * 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
 * Wheeler W. M. 1937. Additions to the ant-fauna of Krakatau and Verlaten Island. Treubia 16: 21-24.
 * Wheeler W. M., and J. W. Chapman. 1925. The ants of the Philippine Islands. Part I, Dorylinae and Ponerinae. Philipp. J. Sci. 28: 47-73.
 * Yamane S. 2013. A Review of the ant fauna of the Krakatau Islands, Indonesia. Bull. Kitakyushu Mus. Nat. Hist. Hum. Hist. Ser: A, 11: 1-66