Carabidae Carabidae of the World

Mecyclothorax poro Liebherr, 2012

Mecyclothorax poro Liebherr, 2012
Mecyclothorax poro Liebherr, 2012 Holotype
Female adult
French Polynesia: Tahiti Nui / Mt. Mauru lava tube / el. 705 m 18-IX-2006 lot 01 / 17°38.017'S, 149°21.284'W / pyr. fog moss/liverworts / along stream J.K. Liebherr // HOLOTYPE / Mecyclothorax / poro / J.K. Liebherr 2012 (black-bordered red label).
Image of James K. Liebherr
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Countries and regions
Polynesia (Tahiti)

This species shares with Mecyclothorax angulosus Perrault the distinctly constricted lateral pronotal margins anterad right, projected hind angles. Both species are also characterized by two supraorbital setae and two dorsal elytral setae, and therefore a setal formula of 2121. Both also display dense transverse-line elytral microsculpture loosely joined in a mesh, the microsculpture resulting in an aeneous reflection. The pronotal median base is more distinctly punctate in Mecyclothorax angulosus, and the cuticle between the punctures is covered with indistinct transverse microsculpture, versus the smooth areas between punctures observed in this new species (Fig. 4D). Elytral stria 6 is shallow and nearly smooth near the elytral midlength in this species, versus deeper and punctate—nearly as deep as striae 1–5—in Mecyclothorax angulosus. Also, elytral striae 2–6 are obsolete basally in this species, versus deep and continuously depressed to their juncture with the elytral basal groove in Mecyclothorax angulosus. Standardized body length in this species is 4.4 mm, larger than Mecyclothorax angulosus at 4.0 mm (n = 2; MNHN holotype male plus CUIC female).
(Liebherr, 2012).
Last revision
03 March 2013 13:52 by Alexander Anichtchenko
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