Résumé:
Calliptamus barbarus (Orthoptera: Acrididae) is the most polymorphic species within the genus Calliptamus. It
shows a morphological polymorphism (three hind femoral spots, or only one hind femoral spot). Several studies have been
made in order to distinguish the two forms: morphometry, number of ovarioles, sound production, protein and enzyme
system. The aim of our work is to assess whether the two forms can be considered as different taxa and to perform a
molecular phylogenetic study of two populations of C. barbarus collected from two different Algerian localities. No clear
genetic differentiation was found between the samples with different morphologies. Additionally, the samples from Algeria
do not form a monophyletic sister clade compared to the one formed by the sequences from GenBank from other
geographical regions. Despite the morphological differences shown between the two populations, our molecular study
indicates that there are no differences at a molecular level using the two mitochondrial genes COI and 16S.
