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Biological studies on bark beetles of the Seychelles (Col., Scolytidae)

The biology of 17 species of scolytid bark beetles in the genera Coccotrypes, Cryphalus, Hypocryphalus and Hypothenemus, found on the island of Mahé in the Seychelles is discussed. Particular attention is paid to their distribution, host plants, gallery systems, breeding systems and potential economic importance. Eight species are recorded from the Seychelles for the first time. Brief notes are given on 7 further species recorded from the Seychelles but not found in this study. Two species, Hypothenemus birmanus and H. eruditus are potential pests of stressed seedlings and transplants. Species of Coccotrypes may reduce the regeneration of certain endemic trees and palms with large seeds.