Hydrachnidia, also known as "water mites", Hydrachnidiae, Hydracarina or Hydrachnellae, are among the most abundant and diverse groups of benthic arthropods, composed of 6,000 described species from 5
Parasitengona
…is a group of mites, variously ranked as a hyporder or a cohort, between the taxonomic ranks of order and family. They are divided into the aquatic Hydrachnidia (water mites) and the terrestrial Trombidia. The latter includes velvet mites and chiggers. Many Parasitengona are relatively large (for mite standards…
Water mites in a mat of floating algae
Two water mites feeding on the larva of a chironomid