Habralictus and Lasioglossum of Saint Lucia and Saint Vincent and the Grenadines, Lesser Antilles (Hymenoptera, Apoidea, Halictidae)

Abstract

The new species and the first halictid bees documented from Saint Lucia Habralictus reinae, Lasioglossum (Dialictus) luciae, and L. (Habralictellus) delphiae are described. A fourth species, L. (D.) dominicense, is tentatively recorded from the island. The species are illustrated and compared to similar ones from the Lesser Antilles. Lasioglossum and Habralictus from neighbouring Saint Vincent and the Grenadines are reviewed and a key to Lasioglossum provided, including the description of another new species, L. (Dialictus) gemmeum. Trigona nigrocyanea Ashmead and Dufourea subcyanea Ashmead are synonymised under Lasioglossum cyaneum (Ashmead). Notes on the obscure Lasioglossum (Dialictus) minutum (Fabricius) are provided. A new name, Lasioglossum (Homalictus) minuens, is provided for a secondary homonym Homalictus minutus Pauly. The potential for additional species richness in Saint Lucia and the Lesser Antilles is briefly discussed.