The Naturalis Biodiversity Center (NBC) holds type speci­mens of 24 taxa of worldwide Triphoridae. For historical specimens (pre-World War II) the species name in its origi­nal combination is provided, followed by bibliographic details of the original description, the location of the known type material, the original description, a diagnosis, nomen­clatural notes and illustrations of the type specimens and original labels. For more recently described species infor­mation is provided on the type locality and type material. The name Triphora raoulensis is an unpublished manuscript name by T. Iredale, “co-type” specimens are deposited in the NBC and National Museum of Wales (NMW), and the name is considered unavailable.