Acalles echinatus is species of beetle from the family Curculionidae. It inhabits Europe and the Transcaucasia.
Taxonomy This species was first described in 1824 by Ernst Friedrich Germar under the name Cryptorhynchus echinatus. The type locality was indicated as "Carniolia", in the present-day Slovenia.
Acalles echinatus, together with nine other species, forms the echinatus group within the genus Acalles, characterized by a triangular shape edeagusa. Sibling species for A. echinatus are Acalles fallax and Acalles petryszaki.
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