Resumen

JUNENT, Sergio ROIG  y  R.QUIROGA,, Carlos. New carabid species and biogeografic considerations of the peripampasic arc. Rev. Soc. Entomol. Argent. [online]. 2021, vol.80, n.1, pp.10-22. ISSN 0373-5680.  http://dx.doi.org/https://doi.org/10.25085/rsea.800102.

Three new species of Carabidae (Coleoptera) inhabiting highland grasslands and Chaco Serrano, in San Luis and Córdoba provinces of Argentina, are described and illustrated based on morphological external and genital characters. They constitute endemic species of different mountain systems. Two species belong to the genus Baripus Dejean, (B. (Baripus) merloensis n. sp. and B. (Baripus) puritano n. sp.), and one to the genus Cnemalobus Guérin-Ménéville, C. gustavoi n. sp. The new species are included in updated keys to the species of subgenus Baripus and genus Cnemalobus, respectively. Distributional data and habitat description are also provided. Finally, a quantitative panbiogeographic track analysis was performed including the subgenus Baripus, the Cnemalobus striatus species group, and other arthropod taxa belonging to biogeographic elements of gondwanan age. The resulting generalized track suggests that the peripampasic arc has different South American biogeographic elements that might have occupied it in different times.

Palabras clave : Baripus; Cnemalobus; Endemisms; Montane environments; Panbiogeographic tracks..

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