Stegnocephala Baly, 1877

Agrain, Federico A., Chamorro, Maria Lourdes, Cabrera, Nora, Sassi, Davide & Roig-Junent, Sergio, 2017, A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata), ZooKeys 677, pp. 11-88 : 43-45

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.

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, Famaillá: Quebrada de Lules, 30-I-1942 // F. Monrós Collection 1959).