Abstract
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) puntano 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
Highlights
Two species belong to the genus Baripus Dejean, (B. (Baripus) merloensis n. sp. and B. (Baripus) puntano 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
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
Summary
& QUIROGA, C.R. Nuevas especies de carábidos y consideraciones biogeográficas diferentes especímenes estuvo basada en características de la morfología externa y de las estructuras de las genitalia masculina y femenina. Los especímenes fueron remojados en NH3 durante 15 minutos para ablandarlos y limpiarlos. El estudio de la genitalia tanto masculina como femenina consistió en remover las estructuras y hervirlas en OHK al 10% durante cinco minutos. Para poder obtener trazos completos del AP, las especies fueron agrupadas en las unidades taxonómicas mayores que ocupan el AP. Tanto de los trazos individuales de los géneros o grupos de especies, como los trazos generalizados fueron volcados en un SIG, utilizando para ello el programa Quantum Gis (versión Qgis 3.4)
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