A new flea beetle genus from sub-Saharan Africa, and taxonomic remarks on the Blepharida genera group in the Afrotropical region (Chrysomelidae, Galerucinae, Alticini)

Calotheca Heyden A habitus of Calotheca haroldi (Baly), male, Republic of South Africa, Kranskloof (SANC) B ibid, head and pronotum C head and pronotum of Calotheca marginalis, modified from Biondi et al. (2017) D ibid, metafemoral extensor tendon E ibid, head. Abbreviations: am: apical margin; bf: basal furrow; dl: dorsal lobe; ea: extended arm; fg: frontal groove; ps: punctate stria. Scale bars: 3 mm (A); 1 mm (B, C); 500 μm (D, E).