Surface-swimming
Guides
Erodiscini
Erodiscini is a tribe of weevils within the subfamily Curculioninae (Curculionidae), containing semi-aquatic species such as Ludovix fasciatus. The tribe includes the genus Sicoderus, which is diverse in the West Indies with over 75 described species. At least some members exhibit specialized surface swimming behavior using all three pairs of legs in a coordinated breast stroke-like motion.
Hypera eximia
Hypera eximia is a weevil species in the family Curculionidae distinguished by its rare surface swimming behavior, an unusual adaptation among weevils. This behavior has been documented and studied for its morphological and phylogenetic implications within the genus Hypera. The species is poorly represented in observation databases, with only four records on iNaturalist. It has been synonymized under the genus Apodrosus as Apodrosus eximius in some taxonomic treatments.