Hydryphantoidea
Family Guides
2Hydryphantoidea is a superfamily of prostigmatan mites within Trombidiformes, comprising approximately 250 described across six . Members are predominantly aquatic or semiaquatic, inhabiting freshwater worldwide. The group includes the families Hydryphantidae, Hydrodromidae, Rhynchohydracaridae, Thermacaridae, Ctenothyadidae, and Teratothyadidae.
Pronunciation
How to pronounce Hydryphantoidea: //haɪdrɪˈfæntɔɪdiə//
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Habitat
Freshwater environments including streams, rivers, lakes, and thermal springs. Several (notably Thermacaridae) are specialized for hot spring .
Distribution
Global distribution with representatives on all continents except Antarctica. Individual show varying geographic ranges.
Ecological Role
Predatory and detritivorous components of freshwater benthic . Serve as prey for larger aquatic and contribute to nutrient cycling in freshwater .
Similar Taxa
- EylaoideaAnother superfamily of freshwater mites in Trombidiformes; Hydryphantoidea distinguished by particular arrangements of setae on the idiosoma and leg chaetotaxy patterns
- HydrovolzioideaSuperficially similar aquatic mite superfamily; Hydryphantoidea generally separated by differences in palp structure and idiosomal
More Details
Family composition
The six constituent show considerable ecological divergence: Hydryphantidae and Hydrodromidae are widespread in running and standing waters; Rhynchohydracaridae are primarily ; Thermacaridae are restricted to thermal springs; Ctenothyadidae and Teratothyadidae are less commonly collected with more restricted distributions.
Taxonomic history
Hydryphantoidea has been variously classified within the cohort Parasitengona or as a distinct lineage within Anystina. The superfamily is united by synapomorphies in larval and respiratory structures.