A list is given of 1 sp. of Scoliidae, 3 spp. of Pompilidae, 3 spp. of Vespidae, and 10 spp. of Sphecidae collected on the Netherlands Antillean Windward Islands: St. Martin (Sint Maarten), Saba, and St. Eustatius. The material from the Institute of Taxonomic Zoology (Zoölogisch Museum), Amsterdam, and the State Museum of Natural History (Rijksmuseum van Natuurlijke Historie, RMHN), Leiden, was studied. That of the first mentioned institute was partly collected by the author during a visit to St. Martin and Saba (Fig. 46) in January and February 1982.