Craspedophorus regalis

Key to species of Craspedophorus regalis group

1 Pronotum with sides of base emarginate, causing center of base to extend toward elytra as a weak peduncle.............. 2

- Pronotal base straight, hind angles rounded.................................................................3

2 Pronotum markedly pedunculate, elytra without maculae, black species (region of the Rift and east Africa from DR Congo and Tanzania to Mozambique and Zambia)............................................... C. unicolor (Chaudoir, 1879)

- Pronotum only weakly pedunculate, each elytron with two orange maculae, humeral macula always fascia-shaped (west Africa from Senegal to Togo)................................................................ C. regalis (Gory, 1833)

3 Pronotum with evenly rounded sides, broadly rounded hind angles, and straight base. Elytral striae coarsely punctate, punctures do not extend into intervals (Plate 6, Fig. 49a). Larger species (28 – 33 mm), (west Africa: Ivory Coast – Cameroon)................................................................................. .. C. imperialis Burgeon, 1930

- Pronotum with straight base and sides in front of hind angles always with an indentation, sometimes with a minor tooth at angles. Elytral striae coarsely punctate, punctures extend to centers of intervals and markedly dislocate them (Plate 6, Fig. 47a). Smaller species (21–28.2 mm) (central Africa: RCA and northeastern DR Congo)....... C. bouvieri (Rousseau, 1905)