Forelia (Forelia) variegator (Koch, 1837)

Synonyms: Arrenurus variegator Koch, 1837 (original deisgnation); Acercus koenikei Barrois & Moniez, 1887; Pseudofeltria vanrensburgi Bader, 1994

Type material: Deposited in NHMB: Holotype one male, catalogue number 4458; Paratype: One male, catalogue number 4459 (GBIF 2022; Plazi.org 2022) .

Type locality: Switzerland: Ticino (GBIF 2022) .

Geographical distribution: Palaearctic (Gerecke et al. 2016).

Distribution in Portugal: Centre: Beira Alta (Valdecasas 1988), in Côa River, near 10 km to Vilar Formoso (Lundblad 1956); South: Estremadura (Valdecasas 1988), in Colares, Sintra municipality (Lundblad 1956).

Ecological notes: Occurs in eutrophic, oligotrophic and dystrophic lakes and slow-running streams, from coast to a depth of 50 m (Gerecke et al. 2016); clean waters, covered with Azolla spp.; and present in Juncus spp. and Myriophyllum spp. (Lundblad 1956) .