Floral visits by stingless bees of the genus Scaptotrigona (Hymenoptera, Apidae, Meliponini): a review
摘要
Stingless bees are widely distributed in tropical and subtropical regions, with the greatest diversity reported in the Neotropical biogeographic region, where they provide essential ecological services. The genus Scaptotrigona comprises 51 species, broadly distributed in this region, and is recognized as an abundant floral visitor. Despite their ecological and economic importance, studies on Scaptotrigona have focused mainly on agricultural contexts, leaving knowledge gaps about their broader role in natural ecosystems. Understanding which plant species they visit is particularly relevant for conservation and restoration initiatives, especially in the face of regional bee declines. This review compiles published data on the interactions between Scaptotrigona species and plants, based on a bibliographic survey conducted in four major scientific databases, covering publications available up to July 2023. The records showed interactions between 13 species of the genus Scaptotrigona and plants within their range. In total, 84 plant families were identified, representing 360 genera and 408 species visited, with the most frequently reported families being Fabaceae, Asteraceae, Malvaceae, Euphorbiaceae, Bignoniaceae, Anacardiaceae, Myrtaceae, Arecaceae, Lamiaceae, and Rubiaceae. Although the data do not allow us to directly confirm their role in pollination, the frequency and diversity of visit records indicate a significant ecological potential that deserves further research focused on pollination effectiveness.