Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks Author Flores, Gustavo E. Author Carrara, Rodolfo Author Cheli, Germán H. text Zootaxa 2011 2965 39 50 journal article 10.5281/zenodo.205983 ec48a020-fd38-4176-8517-bc4d2a065cab 1175-5326 205983 Genus Calymmophorus Solier, 1840 Generic characteristics. The five known species of Calymmophorus are characterized by head hypognathus; antennae reaching 3/4 along lateral margin of pronotum; anterior area of clypeus bent downwards forming a right angle, with margin broadened; genae fused with clypeus; pronotum with anterior margin hood-shaped, produced anteriorly over the head; anterior angles acute; lateral margin at a lower level than disc; prosternum horizontal, posteriorly subrectangular, not expanded, with distinctive anterior margin projected anteriorly covering mouthparts ventrally; each elytron with two carinae halfway between suture and lateral margin ( Kulzer 1958 ).