The Aradidae (Insecta, Hemiptera, Heteroptera) of Argentina Author Contreras, Eugenia Fernanda Author Coscarón, María Del Carmen text Zootaxa 2012 3500 1 35 journal article 10.5281/zenodo.215294 9e62896d-fcee-4263-a0bb-0c2a84fd1bad 1175-5326 215294 CBDF71F7-70A8-415F-83CA-3010E8B2E8B6 Genus Isodermus Erichson, 1842 Figs 1 D, 4C–D Isodermus Erichson, 1842 . Ark. für Natur., 8: 281. Type-species: Isodermus planus Erichson , monobasic. Anchomichon Spinola, 1852 . Hist. Chile , Zool., 7: 214. Type-species: Anchomichon Gayi Spinola , monobasic. Synonymized by Stål, 1873 . Kongl. Svenska Vet.-Akad. Handl., 11(2): 147. Ecpiestocoris Blanchard, 1852 . Hist. Chile , Zool., 7: 223. Type-species: Ecpiestocoris castaneus Blanchard , a junior synonym of Anchomichon " Gayi " Spinola, monobasic. Synonymized by Wygodzinsky, 1946 . Rev. Entomol., 17: 268. Diagnosis: macropterous, with wings sometimes broken off; head about as long as wide across eyes, with a constricted neck region; the juga well developed on either side, extending beyond middle of clypeus; rostrum with the first and second segment very short, third longer and thicker, fourth longest; ventral surface of head without bucculae or rostral groove; corium scarcely distinguished from membrane, separated by an ill-defined transverse, sinuate pale line of weakness at level of apex of scutellum; abdomen polished.