Arrenurus (Arrenurus) autochthonus Lundblad, 1941

Synonym: Arrenurus (Megaluracarus) autochthonus Lundblad, 1941 (original designation)

Type material: Holotype one male NHRS-GULI000089971, Allotype female NHRS-GULI000089972, nymph type NHRS-GULI000089973 deposited at NRM (Pers. comm., G. Lindberg) .

Type locality: Portugal: Madeira Island (Lundblad 1941b) .

Geographical distribution: Portugal: Madeira Island (Borges et al. 2008; Hughes et al. 1998).

Distribution in Portugal: Madeira Island (Borges et al. 2008; Hughes et al. 1998).

Ecological notes: Freshwater (Borges et al. 2008; Hughes et al. 1998).