4. Lestes dryas (Kirby, 1890)

Conservation and breeding status: LC (EU), LC (IT), LC (MED), NB

This holarctic lentic damselfly was recorded in LPO (10) and PDS (15); breeding was not confirmed, though observation of up to 4 males during three consecutive counts in PDS (11 and 27 Jul 2016, 19 Aug 2016) makes reproduction likely. Though considered quite common in the Western Italian Alps (Siesa 2017), Boano et al. (2007) reported a rather fragmented occurrence in Piedmont, which was confirmed by the preliminary Italian Atlas (Riservato et al. 2014c). A similar pattern of distribution was recorded in Switzerland, where L. dryas was not observed in the adjacent Canton Tessin (Wildermuth et al. 2005).