Myrmecina inflata

Nothing is known about the biology of .

Identification
Okido, Ogata, and Hosoishi (2020) - A member of the Myrmecina spinosa complex (Myrmecina andalas, M. inflata, Myrmecina magnificens, Myrmecina mahuana, Myrmecina spinosa, and Myrmecina tridentata). Within this complex, M. inflata can be distinguished by the concave anterior margin of the first gastral tergum and straight masticatory margin of the mandible.

Distribution based on Regional Taxon Lists
Oriental Region: Thailand.

Nomenclature

 * . Myrmecina inflata Okido, Ogata & Hosoishsi, 2020: 51, fig. 22 (w.) THAILAND.

Worker
Holotype. TL 3.18, HL 0.79, HW 0.75, CI 95, SL 0.67, SI 89, PW 0.42, ML 0.80. Paratype. TL 3.12-3.26, HL 0.74-0.84, HW 0.74-0.80, CI 92-101, SL 0.66-0.72, SI 83-98, PW 0.46-0.51, ML 0.78-0.86 (7 measured).

Occipital margin of head strongly concave in full-face view; lateral margin strongly convex; dorsal outline strongly convex in profile; occipital corners projected posteriorly. Masticatory margin of mandible straight; apical tooth strong, third tooth weakly developed, followed by 6 small teeth; small teeth frequently unclear. Dorsal surface of clypeus not concave; median portion of anterior margin weakly projected; lateral portion simple, lacking sharp ridge in front of antennal insertions. Anterior dorsal surface of labrum with paired small denticles distinctly, which are well separated. Frontal carinae present, running back to occipital corners, but very obscure, difficult to distinguish from rugae on dorsum of head. Eyes large and convex, varying in size with maximum diameter 0.14-0.18 mm and 6-8 ommatidia. Antennal scape short, just reaching posterolateral corner of head; antennal flange developed.

Dorsal outline of mesosoma slightly convex in profile. Pronotum without denticles on dorsolateral portion; anterior ventrolateral portion forming small denticle or an angle. Eumetanotal spine present but small and unclear. Propodeal spine triangular, directing upward and backward, just reaching vertical posteriormost limit of propodeum in profile; tips directing outward in dorsal view. Propodeal lobe low. Propodeal spiracle medium-sized, situated near base of propodeal spine, distance between posterior margin of spiracle and posterior margin of propodeum longer than diameter of spiracle. Petiole shorter than high in profile; dorsal crest located at midlength in profile; ventral outline flattened; subpetiolar process present. Postpetiole as broad as petiole and expanded posteriorly in dorsal view; dorsal outline slightly convex or flattened in profile; ventral outline projected with anterior apex at anterior portion.

Anterior margin of gaster concave in dorsal view.

Head with thin rugae which are weakly waved; ventrolateral portion with 2-3 rugae curved downward. Clypeus smooth and shining. Mesosoma with irregular rugae in profile. Mesosoma with thick rugae distinctly. Petiole and postpetiole with distinct rugae. Head and mesosoma with dense pilosity on dorsum, hairs of pronotum longer than propodeal spine. Pilosity of petiole and postpetiole slightly longer than that of mesosoma. Postpetiole with about 4 hairs, but varies on ventral surface. Body black, mandibles, antennae and legs reddish brown to yellowish brown.

Type Material
Holotype worker, THAILAND: Phang Nga Prov., Tone Chong-Fah Waterfall, 20 km S. Takuapa, 100-200 m H, 11-14. 01. 1996 (A. Schulz, K. Vock). Paratypes. 8 workers with same data as holotype (NHMW).