Chaetarthria

Members of Chaetarthria can be distinguished from other Hydrophilidae by their placement in the subfamily Chaetarthriinae, characterized by specific morphological features of the chaetotaxy (bristle arrangement) and genitalia. The genus is distinguished from other chaetarthriine genera by features of the antennae, maxillary palps, and male genitalia. Species-level identification requires examination of genitalic structures and other fine morphological details.

Freshwater aquatic environments. Species in this genus are typically found in lentic (still water) habitats including ponds, marshes, and slow-moving water bodies.

Recorded from Denmark, Norway, and Sweden based on GBIF distribution data. The genus has a broader distribution across the Palearctic and other regions, with species known from Europe and Asia.

As water scavenger beetles, members of this genus likely contribute to nutrient cycling in freshwater ecosystems through scavenging and processing of organic matter.

• Other Hydrophilidae generaChaetarthria is distinguished from other hydrophilid genera by its subfamily placement (Chaetarthriinae), which is characterized by reduced mesoventral process and specific features of the prosternum.
• Other Chaetarthriinae generaWithin the subfamily Chaetarthriinae, Chaetarthria is distinguished from related genera such as Anacaena and Cercyon by differences in antennal club structure, maxillary palp morphology, and male genitalia.

• water scavenger beetles
• aquatic beetles
• freshwater insects
• Hydrophilidae
• Chaetarthriinae

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life