Hydroporus tristis (Paykull)

Alarie, Yves, 2016, Further contributions to the Hydradephaga (Coleoptera, Haliplidae, Gyrinidae and Dytiscidae) fauna of Prince Edward Island, Canada: new records, distributions and faunal composition, ZooKeys 600, pp. 103-129 : 112

Taxon classification Animalia Coleoptera Dytiscidae

Hydroporus tristis (Paykull)

Note.

Several specimens of Hydroporus tristis were collected from Kings and Prince Counties (Table 2).

Habitat.

This species occurs in a variety of lentic habitats. Specimens are usually found among dense emergent vegetation at the margin of small, often more or less shaded pools. Hydroporus tristis is also common in small peatland pools ( Larson et al. 2000). Whereas collected in few eutrophic creeks in Prince Edward Island, Hydroporus tristis was most generally found in ponds and shallow pools characterized by heavy accumulation of organic debris as well as in Sphagnum bogs (Table 1).

Distribution in the Maritime Ecozone.

The species is known also from the neighboring Province of New Brunswick ( Larson et al. 2000), and the Magdalen Islands ( Alarie 2009).