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Protonemura vandeli Berthélemy, 1963 DIST-2022. This species, endemic to the Pyrenees, is widely distributed in the Estaragne catchment, mainly in the downstream and middle reaches (sites R to D). No larvae have been recorded above 2150 m a. s. l. Thus autochthony at sites R, a 2, and a 6 b was not validated as the adults observed might correspond to dispersing individuals.
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Launay et al. (2026) studied this question.
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