Megaphyllum montivagum (Verhoeff, 1901)

Megaphyllum montivagum (Verhoeff, 1901) View in CoL

Figs 11a–g View FIGURES 11 a – g

Brachyiulus (Chromatoiulus) montivagus Verhoeff, 1901 : Verhoeff 1901c: 267–268, Fig. 9 View FIGURES 9 a – g . Brachyiulus latesquamosus Attems, 1903: 135 –136, Figs 62–65.

Chromatoiulus montivagus: Attems 1927: 223 ; 1932: 9–10.

Chromatoiulus latesquamosus: Attems 1927: 232 –233.

Chromatoiulus (Chromatoiulus) montivagus: Attems 1940: 306 .

Chromatoiulus (Phauloiulus) latesquamosus: Attems 1940: 307 .

Chromatoiulus macedonicus Strasser, 1976: 616 –617, Figs 57–59. Chromatoiulus macedonicus: Ceuca 1992: 425 .

Megaphyllum latesquamosum: Enghoff & Kime 2009 .

Megaphyllum macedonicum: Makarov et al. 2004: 261 .

Megaphyllum montivagum: Enghoff & Kime 2009 ; Lazányi et al. 2012: 12, 18, 20, 41, Figs 15–17 View FIGURES 15 a – g View FIGURES 16 a – g View FIGURES 17 a – g .

Material examined. Greece: 1♂, Hellas, Peloponnese, Tripolis, Phrygana, 11.12.1988, leg. M. Karamaouna (ZMUC).

Distribution. Greece (Verhoeff 1901c; Attems 1903; Strasser 1974, 1976); Republic of Macedonia (Lazányi et al. 2012); Serbia (Makarov et al. 2004).

Diagnosis. Differs from the most similar M. dentatum and M. glossulifer by the thicker posterior solenomere process ( psp) ( Figs 11b, 11d View FIGURES 11 a – g ) and by the apically flattened—best seen in mesal view—and bulging promere ( P) ( Figs 11a–c View FIGURES 11 a – g ).

Opisthomere’s (11a–b, 11d) posterior process ( pp) more or less as long as the solenomere; opisthomere usually with an anterior ridge ( ap). Posterior solenomere process ( psp) highly variable, always wavy, but occasionally globular or elongated and bent. Anterior solenomere process ( asp) quite short. Individuals mostly with a not too large posterior apical hump ( ph).

Uniformly dark brown animals, ozopore line and prozona are darker. Body length and height: males: 19.6– 27.2mm, 1.5–1.9mm; females: 24.1–36.7mm, 2.3–3mm.

Remarks. M. macedonicum (Strasser, 1976) and M. latesquamosum (Attems, 1903) have recently been synonymised with M. montivagum (Lazányi et al. 2012) . This is a widespread species in the Balkan Peninsula, with significantly larger individuals in the Peloponnese (male 37.9mm long, 2.8mm high; female 48.3mm long and 4.4mm high). The variability of the solenomere shows no distinct distribution pattern (Lazányi et al. 2012). Setiform filaments occur sometimes on the opisthomere’s flagellum-conducting lamella ( e.g. individuals from Ostrovo and Zakas, see Lazányi et al. (2012)).

3. The Megaphyllum transsylvanicum — species group Fig. 1d View FIGURES 1 a – e

Posterior opisthomere process ( pp) always well-developed; anterior process or ridge not developed. Posterior apical hump ( ph) significantly large, anterior hump ( ah) less characteristic and detectable only in M. transsylvanicum . Posterior solenomere process ( psp) neither cockscomb-like, nor finger-formed or wavy-like in the other groups; always smaller than the elongated and sometimes even rod-like anterior solenomere process ( asp).