Porcellio dilatatus Brandt, 1831

Porcellio dilatatus Brandt, 1831 View in CoL

Fig. 6 E View Figure 6

Porcellio dilatatus Brandt in Brandt and Ratzeburg 1831: 78, Pl. 12, fig. 6 c, d; Vandel 1946: 316, fig. 135; Schmölzer 1971: 44. View in CoL

Porcellio ( Porcellio) dilatatus Arcangeli, 1935 a: 12 View in CoL .

Porcellio dilatatus dilatatus View in CoL ; Reboleira et al. 2015: 46.

Material examined.

Portugal – Sicó • 1 ♀; 39°58'51.8"N, 8°33'13.1"W; 20.VII.2022; leg. R. P. Eusébio; MSS pitfall trap; MNHNC: MB 11: 001122 GoogleMaps • 1 ♂; 19.XII.2022; same data as for preceding; MNHNC: MB 11: 001274 GoogleMaps • 1 ♂, 3 ♀♀; 20.III.2023; same data as for preceding; MNHNC: MB 11: 001371 , 001382 GoogleMaps . – Montejunto • 1 ♂; 39°10'11.4"N, 9°04'14.8"W; 21.III.2023; leg. R. P. Eusébio; MSS pitfall trap; MNHNC: MB 11: 001389 GoogleMaps . – Arrábida • 22 ♂♂, 41 ♀♀, 182 juvs; 38°28'59.2"N, 9°00'09.9"W; 21.VII.2022; leg. R. P. Eusébio; MSS pitfall trap; MNHNC: MB 11: 001135 , 001138, 001140, 001150, 001152, 001158, 001169, 001170, 001173, 001174 GoogleMaps • 2 ♂♂, 12 ♀♀, 20 juvs; 20.IX.2022; same data as for preceding; MNHNC: MB 11: 001235 , 001238, 001243, 001247 GoogleMaps • 28 ♂♂, 23 ♀♀, 32 juvs; 20.XII.2022; same data as for preceding; MNHNC: MB 11: 001304 , 001308, 001310, 001316, 001317, 001319, 001322, 001326, 001330, 001333 GoogleMaps • 16 ♂♂, 13 ♀♀; 22.III.2023; same data as for preceding; MNHNC: MB 11: 001361 , 001364, 001365, 001366 GoogleMaps .

Distribution.

Common across Europe and introduced into many parts of the world.

Ecological notes.

This species is mainly found in caves and MSS habitats but does not show any adaptation to subterranean habitats.

Seasonal patterns in Portuguese MSS habitats.

This species was found in three locations, Sicó, Montejunto and Arrábida. In Sicó and Montejunto it was found in very low numbers (Fig. 7 E View Figure 7 ). In Arrábida it was captured during all seasons, with abundance decreasing from spring to summer, then increasing slightly in fall and decreasing again in winter (Fig. 7 E View Figure 7 ).