Bright, Donald E., author2021-03-252021-03-252021-03-24https://hdl.handle.net/10217/229307Includes bibliographical references and index.This contribution consists of two parts. The first part is the fourth supplement to the 1992 Catalog of the Scolytidae and Platypodidae (Coleoptera) of the World (Wood and Bright 1992) and summarizes the additions and corrections that have affected the nomenclature of the family for the years 2011 through 2019. New synonymy proposed in this supplement: Dryocoetes caryi Hopkins (=Dryocoetes sechelti Swaine); Lymantor decipiens (LeConte) (=Lymantor alaskanus Wood). New combinations proposed in this supplement: Ancipitis scabrior (Schedl) from Xyleborus; Beaverium obstipus (Schedl) from Xyleborus; Beaverium rufus (Schedl) from Xyleborus; Cyclorhipidion inaqualis (Schedl) from Xyleborus; Debus amphicranoiodes (Hagedorn) from Xyleborus; Euwallacea pseudorudis (Schedl) from Xyleborus; Euwallacea sublinearis (Eggers) from Xyleborus; Planiculus subdolosus (Schedl) from Xyleborus; Pseudowebbia bakoensis (Browne) from Webbia; Pseudowebbia quattuordecimspinatus (Sampson) from Webbia. New status proposed in this supplement: Dendroctonus barberi Hopkins is removed from synonymy with Dendroctonus brevicomis LeConte and placed as a subspecies of D. brevicomis; Euwallacea kuroshio Gomez and Hulcr, Xyleborus whitfordiodendrus (Schedl) and E. fornicatior (Eggers) are placed as subspecies of Euwallacea fornicatus (Eichhoff). New name proposed in this supplement: Ambrosiophilus incertissimus for Xyleborus incertus Schedl 1969, not Schedl 1963. New distribution records are given for 130 species. The second part of this paper is a checklist of the world Scolytidae (Coleoptera) consisting of 280 genera, of which 17 are fossils, and 7829 species, of which 61 are fossils. Generic and specific names that are currently recognized are listed along with their synonyms, if any. Generic names are listed in alphabetical order, followed by the included species, also in alphabetical order. The known distribution of every species is given. The cut-off date is December 31, 2019.born digitalreportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Coleopterasystematicsdistributionnomenclaturesynonymynew combinationschecklistScolytidaeBeetlesText