The Swedish entomologist, Karl-Johan Hedqvist (1917–2009) described 261 species of insects, 260 speciesof Hymenoptera and one of Coleoptera, plus 72 genera and a small number of family-level taxa. Thesetaxa are catalogued and the current depositories of the types are listed, as well as some brief notes on thehistory of the Hedqvist collection. We also discuss some issues that can arise when type-rich specimencollections are put on the commercial market.