Mecyclothorax globulosus Perrault, 1978b: 159; 1989: 67

Liebherr, James K., 2013, The Mecyclothorax beetles (Coleoptera, Carabidae, Moriomorphini) of Tahiti, Society Islands, ZooKeys 322, pp. 1-170 : 115

101. Mecyclothorax globulosus Perrault, 1978b: 159; 1989: 67

Identification.

As one of the dorsally glossy members of the Mecyclothorax globosus group with setal formula 2121 (Figs 48C, D, 49 B–D), this species can be recognized by the basally broad, subparallel elytra (Fig. 49D). The eyes are small and the ocular lobes are little protruded - ocular ratio 1.42, ocular lobe ratio 0.78 - with a horizontal diameter of the eye maximally crossing 16 ommatidia. The discal elytral striae 1-6 are broad and slightly wavering in their deepest portions, but not punctate. Stria 7 is deeper and more narrowly incised than stria 6. Striae 3-5 are shallower near the elytral basal groove than on disc, and stria 3 is incomplete there, i.e., obsolete basally. The frons is covered with an evident transverse mesh, the sculpticells clearly visible between the transverse wrinkles associated with the frontal grooves. The pronotal and elytral discs are glossy, with indistinct, elongate transverse mesh microsculpture visible outside the fields of reflected light. The male aedeagal median lobe shaft is arcuately curved with a narrowly extended apex bearing a ventrally pointed tip ( Perrault 1989, fig. 14). Standardized body length 3.4-3.6 mm.

Distribution and habitat.

This species is known from three specimens collected 1000-1400 m elevation on Mont Aorai, one collected in a vinegar pitfall trap ( Perrault 1989).