Dioxys montanus Heinrich, 1977

Wood, T. J., 2025, Resolving issues in the genus Dioxys (Hymenoptera, Megachilidae, Dioxyini) in the West Palaearctic with a new identification key, ZooKeys 1226, pp. 261-302 : 261-302

9. Dioxys montanus Heinrich, 1977 , sp. resurr.

Fig. 11 A – H

Dioxys montana Heinrich, 1977: 11, ♀ ♂ [ Turkey, OÖLM, examined].

Material examined.

Turkey • 1 ♀; Mut, Sertavul [ Sertavul Geçidi ]; 1600 m a. s. l.; 9 Jun. 1968; J. Gusenleitner leg.; OÖLM (holotype) (Fig. 11 A – D ) • 1 ♂; Mut, Sertavul [ Sertavul Geçidi ]; 1600 m a. s. l.; 31 May 1967; J. Gusenleitner leg.; OÖLM (paratype) (Fig. 11 E – H ) • 1 ♀; Sille b. Konya ; 8 Jun. 1972; K. Kusdas leg.; M. Schwarz det.; OÖLM • 1 ♂; Mut, Sertavul Pass [ Sertavul Geçidi ]; 22 Jun. 1976; J. Heinrich leg.; ZSM (paratype) • 1 ♂; Sille b. Konya ; 9 Jun. 1975; J. Heinrich leg.; J. Heinrich det.; ZSM (labelled as paratype but not indicated as such in the original publication) • 1 ♂; Sille b. Konya ; 4–17 Jul. 1977; J. Heinrich leg.; J. Heinrich det.; ZSM (labelled as paratype but not indicated as such in the original publication) • 1 ♂; Ürgüp As. Turk. ; 26–28 Jun. 1977; J. Heinrich leg.; J. Heinrich det.; ZSM (labelled as paratype but not indicated as such in the original publication) .

Remarks.

Bogusch (2023) synonymised D. montanus with D. cinctus with the justification that “ Both type specimens … do not morphologically differ from typical specimens of D. cinctus ”. No illustrations were provided. Based on examination of the type series, this position is unjustified, and D. montanus sp. resurr. is returned to species status. Specifically, the female T 6 is semi-circular, with an evenly rounded outline, and S 6 is more or less triangular, with the outer faces giving the impression of being slightly bowed or reflexed, before slightly curving outwards at their weakly truncate apex which projects beyond the apex of T 6 in dorsal view (Fig. 11 D ). This is strongly different to the condition in D. cinctus where in dorsal view S 6 can be seen as having a rectangular outline, clearly broader than long, and with the ventrolateral corners clearly visible on either side of T 6 (Fig. 1 A ). Moreover, in the male, the apical margin of S 4 is much more thickly hairy (Fig. 11 H ), with an apical hairband which is only slightly weaker than the hairband on S 3 (in D. cinctus with the hairband of S 4 clearly weaker and sparser than that on S 3, Fig. 4 D ) and without a pair of short but projecting teeth, the apical margin broadly and widely emarginate (in D. cinctus with the apical margin of S 4 straight, with a pair of short and projecting teeth, Fig. 4 D ).

Distribution.

South-western and central Turkey (provinces of Konya, Mersin, and Nevşehir; Heinrich 1977).

Figures

Figure 1. Female Dioxys species, T 6, dorsal view A Dioxys cinctus (Jurine, 1807) (Spain) B Dioxys rotundatus Pérez, 1884 (Morocco) C Dioxys rufipes Morawitz, 1875 (Turkey) D Dioxys pumilus Gerstäcker, 1869 (Greece: Kos) E Dioxys cypriacus Popov, 1944 (Cyprus) F Dioxys varipes De Stefani, 1887 (Morocco).

Figure 4. Male Dioxys species, genital capsule and S 4 A, B Dioxys rufipes Morawitz, 1875 (Greece) C, D Dioxys cinctus (Jurine, 1807) (Spain) E, F Dioxys rotundatus Pérez, 1884 (Morocco).

Figure 11. Dioxys montanus Heinrich, 1977, female holotype (A, B, C, D) and male paratype (E, F, G, H) (OÖLM) A label details B habitus, profile view C terga, dorsal view D T 6, dorsal view E label details F habitus, profile view G T 4 – T 6, posterior view H S 2 – S 4, ventrolateral view.