Two new species of pseudoscorpions are described: Pachyolpium confusum spec. nov. from St. Eustatius (Statia) and Amblyolpium martinensis spec. nov. from St. Martin (Sint Maarten). Another species: Novohorus incertus (Beier, 1931) is recorded from 2 new localities: Anguilla and St. Martin (Sint Maarten). A comparative examination is performed to check how far the ratio palpal femur length/palpal patella length is useful as a taxonomic character to separate a number of species belonging to the genus Pachyolpium. Two keys are given: i. An adaptation and extension of Hoff’s key (1945) to the westindian species of the genus Pachyolpium, relying on present-day knowledge of interspecific relationship within the genus. ii. A key to separate genera belonging to the family Olpiidae with two tactile setae on the dorsum of palpal femur.

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Zoologische Mededelingen

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Naturalis journals & series

van den Tooren, D. (2002). Pseudoscorpions of the genera Pachyolpium, Novohorus and Amblyolpium (Pseudoscorpiones: Olpiidae) from St. Eustatius (Statia), St. Martin (Sint Maarten) and Anguilla (Lesser Antilles, Leeward group). Zoologische Mededelingen, 76, 17-24, 451–472.