Ploeotia

Ploeotia is a genus of water striders (family Gerridae) belonging to the subfamily Ptilomerinae. They are small to medium-sized insects found primarily in the Old World tropics, specifically in Southeast Asia and the surrounding regions.

Characteristics:

Ploeotia species are characterized by their slender bodies, long legs, and ability to walk on water surfaces. They possess hydrofuge hairs on their legs, which trap air and prevent them from sinking. Specific features that distinguish them from other gerrids include the structure of their antennae and the shape of their pronotum. Detailed taxonomic keys are needed for accurate species identification.

Habitat and Ecology:

Ploeotia inhabit still or slow-moving freshwater habitats, such as ponds, rice paddies, and slow-flowing streams. They are predators, feeding on small insects and other invertebrates that fall onto the water surface. They detect prey through vibrations in the water.

Distribution:

The distribution of Ploeotia is largely limited to the Old World tropics, with a concentration of species found in Southeast Asia. Specific species ranges vary, and further taxonomic research is ongoing to clarify the exact distribution of some species.

Taxonomy:

The genus Ploeotia was established by Bergroth. Several species are recognized within the genus, and taxonomic revisions have occurred over time, resulting in changes to species classifications and synonymies. The taxonomy of some species remains uncertain, and further research is needed to resolve these issues.