[1]
Astrin, J.J. and Stüben, P.E. 2009. Molecular phylogeny in ’nano-weevils’: description of a new subgenus Nanoacalles and two new species of Calacalles from the Macaronesian Islands (Curculionidae: Cryptorhynchinae). Zootaxa. 2300, 1 (Nov. 2009), 51–67. DOI:https://doi.org/10.11646/zootaxa.2300.1.4.