Mecyclothorax cooki
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Ordo: Coleoptera
Familia: Carabidae
Genus: Mecyclothorax
Name
Mecyclothorax cooki Perrault, 1986: 449 – Wikispecies link – Pensoft Profile
Identification
This species is extremely similar to the preceding, Mecyclothorax aorai, and in addition to the characters of the key, can be diagnosed by the less transverse pronotum; MPW/PL = 1.20–1.27 (n = 2) for this species versus 1.30–1.37 (n = 2) for Mecyclothorax aorai. The pronotal basal margin is straighter immediately mesad the hind angles in this species (Fig. 25D), versus curved forward in Mecyclothorax aorai where the basal seta is placed noticeably anterad a line defined by the basal margin of the pronotum near the midline. Head with well-developed microsculpture consisting of upraised, transversely stretched sculpticells. The pronotal disc is covered with a swirling transverse mesh, the sculpticell breadth 3–4× length on lateral convex areas. Discal elytral intervals with rough-appearing transverse mesh microsculpture that includes a small proportion of isodiametric sculpticells, the sculpticell margins distinct, transverse sculpticell breadth 2–4× length. Setal formula 2221; standardized body length 5.7 mm.
Distribution and habitat
This species is known to live on Mont Aorai from 1265 m to 1900 m elevation. One of the four known specimens was collected by beating live and dead fern fronds over a beating sheet, indicating the use of an arboreal refuge during daytime.
Taxon Treatment
- Liebherr, J; 2013: The Mecyclothorax beetles (Coleoptera, Carabidae, Moriomorphini) of Tahiti, Society Islands ZooKeys, 322: 1-170. doi
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