Antaxius spinibrachius

Antaxius spinibrachius

Antaxius is a genus of 'katydids crickets' belonging to the family Tettigoniidae. The genus Antaxius Brunner von Wattenwyl, 1882 is distributed mainly in mountain systems from southern Europe and Morocco. It is integrated by 12 species arranged into three subgenera. Antaxius (Antaxius) spinibrachius (Fischer, 1853) is an endemic species to the Iberian Peninsula, distributed along the Northern Atlantic coast of Portugal, Cantabrian Range, Iberian System, Central System and the Cordillera Oretana. The species presents variable color patterns and morphological characters. Sampling was carried out all over the known range of the species. We used species distribution models (SDMs) in order to locate possible unidentified populations, since geographic ranges are not generally well known for Iberian Orthoptera. A total of 62 individuals from 34 populations were sequenced for mitochondrial gene Cox1. Bayesian analyses depicted two well supported lineages, one of them occurring along the Cordillera Oretana and the other including all other populations. The Oretana populations present differential characters relative to all other lineages. The concordance between morphological characters and genetic data suggest the presence of a new taxon of Antaxius in the Iberian Peninsula.
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderOrthoptera
FamilyTettigoniidae
GenusAntaxius
SpeciesAntaxius spinibrachius
Photographed in
Portugal