Mecyclothorax fosbergi Perrault, 1979: 9; 1988: 232

Liebherr, James K., 2013, The Mecyclothorax beetles (Coleoptera, Carabidae, Moriomorphini) of Tahiti, Society Islands, ZooKeys 322, pp. 1-170 : 28

12. Mecyclothorax fosbergi Perrault, 1979: 9; 1988: 232

Identification.

Relative to Mecyclothorax fosbergioides , this species can be diagnosed immediately by the reduced microsculpture that results in a glossy dorsum. The pronotum is narrow, MPW/PL = 1.07, and the humeral angles are proximate due to the narrow elytral base, MEW/HuW = 2.36. The male aedeagal median lobe is elongate and narrow, the apex expanded both dorsally and moreso ventrally, with a flattened apical face (Fig. 13E). The male flagellar plate is moderately long, its length estimated at 0.45 × the distance from parameral articulations to the apex in the uneverted aedeagus. Setal formula 2222; standardized body length 8.25 mm.

Distribution and habitat.

This species is known only from the holotype specimen collected by the botanist F.R. Fosberg, from dead Cyathea fern fronds at 915 m elevation above the floor of Papenoo Valley on the lower flank of Mont Orohena.