A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata) Author Agrain, Federico A. Author Chamorro, Maria Lourdes Author Cabrera, Nora Author Sassi, Davide Author Roig-Junent, Sergio text ZooKeys 2017 677 11 88 http://dx.doi.org/10.3897/zookeys.677.10778 journal article http://dx.doi.org/10.3897/zookeys.677.10778 1313-2970-677-11 1C3D9A997A4C443FB228CEA383A2D72F 1C3D9A997A4C443FB228CEA383A2D72F Stegnocephala Baly, 1877 Fig. 23 Stegnocephala Baly 1877b : 32; Jacoby 1889 : 122; Clavareau 1913 : 113; Bruch 1914 : 352. Type species. Cryptocephalus hemixanthus Suffrian, by original designation. Figure 23. Stegnocephala xanthopyga (Suffrian) (2), left: habitus (dorsal view), right: habitus (lateral view). Diagnosis. Coxa widely separated, epipleural lobes strongly produced. Chamorro-Lacayo and Konstantinov (2004) , provided several prothoracic characters: pronotal punctures absent; intercoxal prosternal process truncate; anterior margin of intercoxal prosternal process with a medial flange, or two submedial flanges. Distribution. From Costa Rica to Argentina, mainly in tropical regions. Remarks . Weise (1921) disagreed with the separation of this genus from Cryptocephalus . White (1968) , interpreted Weise's comment as the synonymyzation of Stegnocephala with Cryptocephalus . Since Weise (1921) only provided morphological differences of Cryptocephalus perplexus Suffrian, which is not the type species of the genus, we still consider Stegnocephala as a valid genus. Chamorro is currently revising the genus. Argentinian species checklist. Stegnocephala discoidalis Baly, 1877c (MNS). Stegnocephala xanthopyga (Suffrian, 1863) (TUC). This species newly cited for Argentina (Tucuman, Famailla : Quebrada de Lules, 30-I-1942 // F. Monros Collection 1959).