New genera of new world Cremastocheilini, with revisional notes (Coleoptera: Cetoniidae)

Centrochilus howdeni gen. nov., sp. nov. (Mexico) is described and illustrated. Cyclidinus velutinus Westwood, the distribution of which appears to be Neotropical, is accommodated in Cyclidiellus gen. nov. A brief revised key to the New World genera of Cremastocheilini is given; Uloptera Burmeister is excluded, being Ethiopian, the new genera and the neglected Cyclidinus Westwood are included.