A key to the species of Karekizo

1 Tufts of erect scales along third elytral intervals unicolorous (dark orange) (Fig. 1); femora with distinct depression dorsally near mid-point (Fig. 2F, 4A); tooth on mid- and hind-femora large, distinct; sclerotized edges of aedeagus convergent in anterior half in dorsal view (Fig. 2A)........................................................ K. depressus sp. n.

- Tufts of erect scales along third elytral interval alternating in color (dark and yellow) (Fig. 5); femora without depression dorsally at mid-point (Fig. 2E, 4B); tooth on mid- and hind-femora small to absent; sclerotized edges of aedeagus parallel in dorsal view (Fig. 2B)....................................................... .. K. impressicollis Morimoto, 1962