Rymosia

Winnertz, 1863

Rymosia is a of fungus gnats (Diptera: Mycetophilidae) in the tribe Exechiini. occur in Europe, Russia, Japan, and the Americas. At least one species, Rymosia tolleti, is exclusively associated with cave environments. The genus is part of the Rymosia s. lat. genus group, a phylogenetically cohesive of genera considered to share plesiomorphic characteristics.

Pronunciation

How to pronounce Rymosia: /raɪˈmoʊʒə/

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Identification

Rymosia can be distinguished from related in the Rymosia s. lat. group by genitalic characters, particularly the structure of the male gonostylus. For definitive identification, examination of male terminalia is required; detailed figures and descriptions are available in taxonomic revisions.

Habitat

At least one (Rymosia tolleti) has been documented exclusively from cave environments. Broader associations for the remain poorly documented.

Distribution

Europe (including Central Europe: Romania, Slovakia, Germany, France), Russia, Japan, and the Americas. GBIF records include Denmark, Norway, and Sweden.

Similar Taxa

TarnaniaBoth belong to the Rymosia s. lat. genus group and share plesiomorphic characteristics; Tarnania is distinguished by unique synapomorphies including campaniform on lower metepisternum and metepimeron, irregular curved bristles on hind tibia, and a bifurcated elongated lobe on the branch of the male gonostylus.
PseudorymosiaSister to Rymosia within the Rymosia s. lat. group; separation requires examination of male genitalic structures.

More Details

Phylogenetic relationships

Phylogenetic analysis supports the relationship (Notolopha (Allodiopsis (Myrosia (Synplasta (Tarnania + (Rymosia + Pseudorymosia)))))) within the Rymosia s. lat. group.

Rymosia tolleti documentation

The Rymosia tolleti, described in 1965, was long neglected until 2023 when male terminalia were first photographed and barcodes were generated.