Mecyclothorax toretore Liebherr, 2012b: 83

Liebherr, James K., 2013, The Mecyclothorax beetles (Coleoptera, Carabidae, Moriomorphini) of Tahiti, Society Islands, ZooKeys 322, pp. 1-170 : 107

89. Mecyclothorax toretore Liebherr, 2012b: 83

Identification.

Among the three Mecyclothorax globosus group species with two supraorbital setae each side and only the anterior dorsal elytral setae, setal formula 2111, plus dense transverse-line microsculpture on the discal elytral intervals (Figs 45C, D, 46A), this species can be diagnosed by the pronotal lateral margins that are subparallel outside the laterobasal depression, the hind angles therefore projected (separating this species from Mecyclothorax niho ), and more narrowly ovate elytra with relatively broad base, MEW/HuW = 1.89, versus the more broadly ovate elytra characterizing Mecyclothorax fuscus , MEW/HuW = 1.97. Elytral striae 1-4 are shallow basally and striae 5-6 are obsolete near the basal groove (Fig. 45D) as opposed to the basally deep striae 1-6 of Mecyclothorax niho (Fig. 45C). Elytral striae 1-6 are minutely punctate in their basal third, versus smooth and slightly undulated in Mecyclothorax fuscus . The vertex is covered with indistinct transverse-mesh microsculpture, the surface glossy in reflected light, and the pronotal disc bears a transverse mesh, sculpticell breadth 2 –4× length, intermixed with transverse lines. No males are known for the species triplet Mecyclothorax niho , Mecyclothorax toretore , and Mecyclothorax fuscus . Standardized body length 4.2 mm.

Distribution and habitat.

This species is known from 1080-1100 m elevation on Mont Mauru. The specimen was collected from dense tangles of dead fern fronds ( Liebherr 2012b).