Tiroloscia squamuligera
Creators: name: Gardini, Pietro
name: Sabatelli, Simone
name: Taiti, Stefano
name: Audisio, Paolo
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Philosciidae
Tiroloscia
Tiroloscia squamuligera

description: Tiroloscia squamuligera (Koelbel, 1895)
(Figs 2B, 4M–O)
Philoscia squamuligera Koelbel in Prossliner 1895: 70.
Philoscia (Paraphiloscia) squamuligera; Verhoeff 1908a: 524; 1908b: 350; 1918: 153–155.
Philoscia (Tiroloscia) squamuligera; Verhoeff 1926: 155; 1931a: 545, figs 35, 36.
Tiroloscia squamuligera; Verhoeff 1928: 135, figs 29, 30.
Tiroloscia squamuligera genuina; Verhoeff 1931b: 48; 1934: 249.
Type locality: Razzes, South Tyrol, Italy (Fig. 1, site 26).
Material examined: Lineage L5. Italy— Piedmont: 4♂♂, Nichelino (TO), Park of Stupinigi (site 10), 240 m a.s.l., 02. VI.2021, G.B. Delmastro leg.; 3♂♂, Castell’Alfero (AT), loc. Callianetto (site 11), 180 m a.s.l., 28.IX.2020, G. Gardini leg.; 6♂♂, Alice Castello (VC) (site 16), 290 m a.s.l., 29. V.2021, G. and P. Gardini leg.; 1♂, Campiglia Cervo (BI) (site 17), beech forest, 860 m a.s.l., 28. V.2021, G. and P. Gardini leg.; 1♂, Varallo (VC), loc. Crosa (site 18), 670 m a.s.l., 28. V.2021, G. and P. Gardini leg.; 4♂♂, Gignese (VB) (site 19), chestnut forest, 680 m a.s.l., 27. V.2021, G. and P. Gardini leg .. Lombardy: 1♂, Valganna (VA) (site 20), 460 m a.s.l., 26. V.2021, G. and P. Gardini leg.; 1♂, S. Fedele Intelvi (CO), Monte Generoso (site 21), beech forest, 985 m a.s.l., 25. V.2021, G. and P. Gardini leg.; 6♂♂, Schilpario (BG), loc. Ronco (site 22), 1100 m a.s.l., 05.VIII.2021, P. Gardini leg. Trentino-South Tyrol: 1♂, Pellizzano (TN), loc. Claiano (site 23), 1100 m a.s.l., 07.VIII.2021, P. Gardini leg.; 3♂♂, Ville d’Anaunia (TN), Lago di Tovel (site 24), 1050 m a.s.l., 07.VIII.2021, P. Gardini leg.; 3♂♂, Soprabolzano (BZ) (site 25), beech forest, 1000 m a.s.l., 08.VIII.2021, P. Gardini leg.; 1♂, Siusi (BZ), Razzes (site 26), 1130 m a.s.l., 08.VIII.2021, P. Gardini leg.
Previous records: Italy— Piedmont: Cossila (Verhoeff 1936). Lombardy: Luino; Laveno (Verhoeff 1928, 1931a); Edolo (Verhoeff 1931b). Trentino-South Tyrol: Bressanone (Verhoeff 1908a, 1908b, 1928); Vipiteno (Verhoeff 1934).
Description
Male pleopod 1.
Lineage L5 (Fig. 4M–O): Exopod cordiform, with poorly developed, broadly rounded posterior tip; outer margin slightly concave with four setae in proximal part; width/length ratio 1.47. Endopod with triangular distal part, with row of short, slightly sinusoidal setae on inner side, smaller than in the other lineages of the T. exigua complex; outer margin straight, apical part without distinct lobes, apical part rounded.
Remarks
The material examined corresponds fairly well to the description and figures of the male pleopod 1 endopod of T. squamuligera provided by Verhoeff (1931a). This species differs from the lineages of the T. exigua species complex in having the male pleopod 1 exopod with a much less developed posterior tip and a greater width/length ratio (1.47 vs. 1.20–1.27) and the endopod almost straight without distinct apical lobes, with a row of much more reduced setae. All observed characters were consistent among individuals across all sampled populations.
description: Published as part of Gardini, Pietro, Sabatelli, Simone, Taiti, Stefano & Audisio, Paolo, 2025, Hidden species' diversitv and phvlogenetic relationships within the terrestrial isopod genus Tiroloscia (Crustacea: Isopoda: Oniscidea), pp. 1-17 in Zoological Journal of the Linnean Society 203 (1) on page 10, DOI: 10.1093/zoolinnean/zlae173, http://zenodo.org/record/14845452