Nomenclatural notes and new species of Sceloenoplini (Coleoptera: Chrysomelidae: Cassidinae)
Twenty new species from Costa Rica are described and illustrated: Ocnosispa condyla, O. depressa, O. humerosa, Pseudispa bellula, P. sinuata, P. tuberculata, Sceloenopla apicispina, S. bicolorata, S. bidentata, S. expanda, S. flava, S. lampyridiformis, S. lutena, S. minuta, S. nigropicta, S. rubivittata, S. sanguinea, S. trivittata, S. unicostata, and S. univittata. Sceloenopla gemmans (Baly) is transferred to Pseudispa. Sceloenopla biolleyi (Pic) is treated as a junior synonym of S. scherzeri (Baly); S. testacepennis (Pic) is treated as a junior synonym of S. proxima (Baly); and S. bryanti (Bondar) is treated as a junior synonym of S. sheppardi (Baly). A summary of Uhmanns (1937) species groups of Sceloenopla, a key to the Central American Sceloenoplini genera, and keys to the species of Ocnosispa, Pseudispa, and Sceloenopla known from Central America are presented.