Stygiiulus seewaldi ( Strasser, 1967 ) Vagalinski & Borissov & Bobeva & Canciani & Antić, 2022

Vagalinski, Boyan, Borissov, Simeon, Bobeva, Aneliya, Canciani, Giacomo & Antić, Dragan Ž., 2022, The mostly cavernicolous millipede genus Stygiiulus Verhoeff, 1929, stat. nov.: taxonomy, distribution and phylogenetic relationships (Diplopoda, Julida, Julidae), European Journal of Taxonomy 798, pp. 30-69 : 53-55

Stygiiulus seewaldi ( Strasser, 1967) comb. nov.

Figs 10E , 13

Alpityphlus seewaldi Strasser, 1967: 146–150 , figs 4–9.

Typhloiulus seewaldi – Fritsch 1998: 149–150, 16. — Vagalinski et al. 2015: 346 .

Diagnosis

A species of Stygiiulus stat. nov. with normal mouthparts. Easily distinguishable from congeners by its specific gonopod conformation ( Fig. 10E ) including a narrow, pointed velum considerably exceeding the solenomere and bearing a small, pointed, distal outgrowth (do) (the latter structure present also in S. insularis comb. nov. and in (some specimens of) S. tobias comb. nov.), in combination with the complete absence of a posterior hump on the opisthomere. Also outstanding by the small and rounded internal lobe of the promere, which is positioned close to promeral base.

Distribution

Germany, Upper Bavaria, Berchtesgadener Land, Untersberg Massif, Cave Hollerloch (the type locality); Austria, Dachstein Mts, tunnel Warmwasserstollen near Lake Hallstatt and Obere Brangrabenhöhle Cave ( Fritsch 1998) ( Fig. 13 , orange squares).

Remark

Fritsch (1998) listed this species under the genus Typhloiulus , relying on J.-P. Mauriès’ opinion expressed in a letter to him. According to Mauriès who studied material of seewaldi , the erection of the genus Alpityphlus by Strasser (1967) was unfounded, the species being a member of Stygiiulus , at that time a subgenus of Typhloiulus . A similar view was expressed by Antić et al. (2017, 2018), but without a formal transfer to Stygiiulus . Based on the detailed original drawings we fully agree on that view, hence the new name combination is formalized here.

Figures

Fig. 10. Left gonopods of species of Stygiiulus stat. nov., mesal views. A. S. ausugi (Manfredi, 1953) comb.nov.,topotype♂(NHMD).B.S.illyricus(Verhoeff,1929)comb.nov.,redrawnfromVerhoeff (1929). C. S. insularis (Strasser, 1938) comb. nov., redrawn from Antić et al. (2018). D. S. maximus (Verhoeff, 1929) comb. nov., redrawn from Verhoeff (1930). E. S. seewaldi (Strasser, 1967) comb. nov., redrawn and modified from Strasser (1967). F. S. tobias (Berlese, 1886) comb. nov., ♂ from Grotta [Cave] del Subiolo (NHMD). Abbreviations: do = distal outgrowth of velum. Drawn not to scale.

Fig. 13. General distribution of the species of the genus Stygiiulus stat. nov.