Four new species of the genus Callistethus Blanchard (Coleoptera: Scarabaeidae: Rutelinae) from Sulawesi and a redescription of Callisthethus [Callistethus] riedeli Lansberge. Entomological Review of Japan, 52(2)(2), Feb 15 1998: 93-101. 98 [Zoological Record Volume 135]