Taxon classification Animalia Coleoptera Dytiscidae

Ilybius discedens Sharp

Note.

Although found in relatively low numbers (seven specimens), this species is reported from each of the three Prince Edward Island counties (Table 2).

Habitat.

Ilybius discedens is one of the most characteristic water beetle species of boreal peatland generally occurring in small, moss-ringed pools, often where the water is cold to the touch (Larson et al. 2000). In Prince Edward Island, the majority of specimens were collected from Sphagnum bogs, although a few specimens were associated with eutrophic lotic habitats (Table 1).

Distribution in the Maritime Ecozone.

This species is also known from the neighboring Provinces of New Brunswick and Nova Scotia (Larson et al. 2000), and the Magdalen Islands (Alarie 2009).