Mecyclothorax poro Liebherr, 2012b: 91

Liebherr, James K., 2013, The Mecyclothorax beetles (Coleoptera, Carabidae, Moriomorphini) of Tahiti, Society Islands, ZooKeys 322, pp. 1-170 : 112

publication ID

https://dx.doi.org/10.3897/zookeys.322.5492

persistent identifier

https://treatment.plazi.org/id/B4115C94-7D9E-1687-198C-F8E28F7324D6

treatment provided by

ZooKeys by Pensoft

scientific name

Mecyclothorax poro Liebherr, 2012b: 91
status

 

97. Mecyclothorax poro Liebherr, 2012b: 91

Identification.

Beetles of this species are most similar to those of Mecyclothorax spinosus and Mecyclothorax angulosus (Figs 48C, D, 49A), but differentially combine the following, therefore being diagnosable from both: 1, pronotum moderately transverse, MPW/BPW = 1.25 (n = 1), and moderately constricted basally, MPW/BPW = 1.56; 2, pronotal median base sparsely punctate, 10-12 small, isolated punctures each side surrounded by glossy cuticle, plus 7-8 elongate punctures each side along juncture with pronotal disc; 3, elytra broadly subquadrate, margins extended laterally outside subangulate humeri; 4, elytral striae 2-6 basally obsolete, not continuous to elytral basal groove. The frons and vertex of the head are glossy with an indistinct transverse mesh; sculpticell breadth 2 –3× length. The pronotal disc bears an indistinct transverse mesh visible outside areas of reflected light, sculpticell breadth 2 –4× length, and the discal elytral intervals are covered with transverse lines irregularly joined into an irregular mesh. Setal formula 2121; standardized body length 4.4 mm.

Distribution and habitat.

The single adult specimen was collected in moss on a low rockface along the Faatautia River as the river exits from a large, uncollapsed lava tube at 705 m elevation on Mont Mauru (see fig. 2A, Liebherr 2012b). This riparian situation is the lowest elevational habitat within which any Tahitian Mecyclothorax specimen has been discovered.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Carabidae

Genus

Mecyclothorax