The Odonata collection deposited at the Museum of Comparative Zoology (MCZ) includes specimens of 634 taxa labelled as types. Fifteen of these have been incorrectly labelled as types (pseudotypes) and eight are apparently lost, leaving a total of 611 types currently deposited at MCZ. From these, 489 represent primary name-bearing types (syntype/s, holotype, lectotype and neotype), 21 are probable primary types, and 101 are secondary types (paratype/s, paralectotype/s).