In a small but very interesting collection of Coleoptera from the island of Sumbawa recently presented to the Leyden Museum by his Excellence, the Governor General of Dutch India J. W. van Lansberge, I found two specimens of a new species of the above mentioned genus. It occupies a position quite by itself in the genus, the pronotum being entirely smooth without a central fovea, and the elytra being irregularly punctate-striate. It has the first mentioned characteristic in common with F. integricollis Thoms. of the Marianne Islands, the second with F. sublaevis Palis. (= nigritus Westw.) of West-Africa and with F. anthracinus Klug of Madagascar. I propose to name this new and interesting species