Serboiulus spelaeophilus Gulička, 1967

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 : 59

Serboiulus spelaeophilus Gulička, 1967

Fig. 11F

Material examined

BULGARIA • 1 ♀ topotype; Belogradchik District , Dolni Lom, Vodni Pech Cave; 25 Feb. 2000; B. Petrov leg.; guano-clay; NMNHS .

Descriptive notes

Vulva ( Fig. 11F ). Strongly compressed in the sagittal plane, mostly symmetric; bursa with a shallow and very narrow median cleft; each valve distolaterally with a few setae; operculum (op) with a deeply concave apical margin, just slightly higher than bursa, distally bearing long setae. Receptaculum seminis consisting of two similarly narrow and twisted tubes – a lateral (lt) and a mesal one (mt), each forming an ovoid ampulla at bottom, the lateral one (la) being somewhat larger than the mesal one (ma).

Figures

Fig. 11. Left vulvae of species of Stygiiulus stat. nov. (A–D) and representatives of (other) Julini/ Leptoiulini (E) and Typhloiulini/blind Julini/Leptoiulini in caudal, somewhat mesal views. A. S. ausugi (Manfredi, 1953) comb. nov., ♀ from Grotta [Cave] del Calgeron (NHMD). B. S. illyricus (Verhoef, 1929) comb. nov., ♀ from Rabakova Cave (IZB). C. S. insularis (Strasser, 1938) comb. nov., topotype ♀ (CBSS). D. S. tobias (Berlese, 1886) comb. nov., ♀ from Grotta [Cave] del Subiolo (NHMD). E. Leptoiulus cf. trilineatus(C.L. Koch, 1847), ♀ from Belasitsa Mtn, Bulgaria. F. Serboiulus spelaeophilus Gulička, 1967, ♀ from Vodni Pech Cave (NMNHS). G. Typhloiulus (Inversotyphlus) lobifer Attems, 1951, ♀ from Minjera-Bauxite Mine (IBER). H. Typhloiulus (s. str.) strictus (Latzel, 1882), ♀ from Kunino (IBER). Abbreviations: at = anterior tube; la = lateral ampulla; lt = lateral tube; ma = median ampulla; mt = median tube; op = operculum; pa = posterior ampulla; pt = posterior tube. Scale bar = 0.2 mm.