Male adult of Heleniella reginae sp. n. is described based on material collected by Malaise traps placed along the glacial stream of Mutt (Swiss Alps, upper Rhône basin). Distinctive specific characters include in particular: anal tergal bands absent; virga composed of two long rods, thick basally fused apically; sternapodeme lacking lateral horn-like projection; anal point short and wide, with apex composed of six small lobes; inferior volsella broadly semicircular and distinctly enlarged. The new species resembles to H. assiana Moubayed, 2026. They appear both to be considered as two sister species.
Ephemera 27 : 140-148 (9 pages)
Heleniella reginae sp. n., a new species occurring in the Mutt glacial stream, Swiss Alps (Diptera, Chironomidae, Orthocladiinae)
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Reçu le 12 juin 2026 -
Accepté le 2 juillet 2026 -
Publié le 25 août 2026
taxonomy
new species
Swiss Alps
conservation measures
Espèces décrites :
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Heleniella reginae
Moubayed & Lods-Crozet, 2026
LSID65A847B5-09DE-45E1-941A-4AA2D68E4652
French translation
Heleniella reginae sp. n., une nouvelle espèce connue du haut bassin du Mutt, torrent glaciaire des Alpes Suisses (Diptera, Chironomidae, Orthocladiinae)
taxonomie
nouvelle espèce
Alpes Suisses
mesures de conservation
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