The genus Japonitata Strand (Insecta, Coleoptera, Chrysomelidae, Galerucinae) in Taiwan: a redefinition of the genus and descriptions of two new species.

The genus Japonitata is redefined based on comparison with its allied genera Paraplotes Laboissière, 1933 and Shairella Chûjô, 1962. Japonitataquadricostata Kimoto, 1996 and J.caerulea Kimoto, 1996 are transferred to Shairella . Japonitatahoujayi sp. nov. and J.jungchani sp. nov. are described. Biological information is provided for J.houjayi sp. nov. In addition, the generic boundary of Shairella is redefined by including S.quadricostata and S.caerulea .