Abstract
The taxonomic status of the four New World species of Salina MacGillivray with bidentate mucro is uncertain. The first two species to be described, S. bidentata (Handschin) and S. wolcotti Folsom, are so poorly described by modern standards that it is unclear if they represent distinct species or the same, colour-pattern variable forms. This contribution presents additions to the description of S. beta Christiansen & Bellinger based on the holotype, a redescription of S. bidentata and S. wolcotti based on freshly collected material from Costa Rica, Puerto Rico and Florida, USA, and description of a new species, S. thibaudi, from Costa Rica and Guadaloupe. Based on analysis of chaetotaxic patterns it is concluded that S. bidentata and S. wolcotti are distinct species, although it remains unclear if S. ventricolor Gruia, from Cuba is distinct from S. wolcotti. The discovery in Costa Rica and Guadaloupe of S. thibaudi, showing a distinct chaetotaxy, but with colour pattern identical to that illustrated in the original description of S. wolcotti, suggests that records of S. wolcotti outside Puerto Rico require verification. A key for the identification of all species of Salina reported from the Americas is provided.References
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