Gallerucida singularis Harold Fig. 4 D–G

Galerucida [sic!] singularis Harold, 1880: 146; see Lee and Bezděk 2013: 359 for complete list.

Diagnosis.

Gallerucida gebieni and G. singularis Harold adults are easily recognized by their reddish brown bodies and black spots behind the humeral calli and at the elytral apices (Fig. 4 D–F) but those of G. singularis possess three black spots on the elytra apices (Fig. 4G) (two spots in G. gebieni (Fig. 4H)).

Redescription.

See Lee and Bezděk (2013).

Host plant.

Polygonaceae: Polygonum chinense L. and Fallopia multiflora var. hypoleucum (Ohwi) Yonek. et H. Ohashi (Lee and Bezděk 2013).

Biology.

Gallerucida singularis populations are presumably multivoltine. Adults are found throughout the year. The natural history was described by Lee and Bezděk (2013).

Distribution.

China, Taiwan (only in Kinmen and Nankan islands).