Leptoplectus similis Kurbatov, 1991

Kurbatov, S. A., 2022, Notes on Pselaphinae (Coleoptera: Staphylinidae) of the Sakhalin Region, Russia, Russian Entomological Journal 31 (1), pp. 36-41 : 40

Leptoplectus similis Kurbatov, 1991

Figs 30–39 .

The difference between Leptoplectus similis and L. illex Kurbatov, 1992 actually is represented only in the inversion of the aedeagus ( Figs 30–31 ). However, no geographical isolation between the two species has been detected. Studies on Sakhalin have shown that these species can coexist not only in the same geographical location but even in the same substrate sample. At the same time, the study of aedeagus of 24 males of these species from Sakhalin, Kunashir and continental Far East has shown, that apical lobe of aedeagus varies in its form, without giving clear correlation with geographical distribution. The figures ( Figs 32–39 ) demonstrate the variability in the apical lobe of L. similis . The difference in length and shape of the lateral spine is largely apparent: in different specimens, the spine is curved differently towards the observer. A similar variability in the apical lobe exists in L. illex . Thus, I see no reason for maintaining two species and synonymize Leptoplectus illex Kurbatov, 1992 with Leptoplectus similis Kurbatov, 1991 (syn.n.).

Figures

Figs 27–39. Details of the Leptoplectus spp: 27 — L. perperus sp.n.; 28 — L. spinolae; 29 — L. falcifer; 30, 32–39 — L. similis; 31 — L. illex; 27–31 — aedeagi; 32–39 — variability of the apical lobe of the aedeagus (32 — Vladivostok, S Primorye; 33 — Kholmsk, Sakhalin Isl.; 34 — Venevitinovo, S Primorye; 35–37, 39 — Nevelsk, Sakhalin Isl.; 38 — Mendeleevo, Kunashir Isl.). Рис. 27–39. Детали строениЯ Leptoplectus spp: 27 — L. perperus sp.n.; 28 — L. spinolae; 29 — L. falcifer; 30, 32–39 — L. similis; 31 — L. illex; 27–31 — Эдеагус; 32–39 — иЗменчивость вершинной доли Эдеагуса (32 — Владивосток, Ю Приморье; 33 — Холмск, о. Сахалин; 34 — Веневитиново, Ю Приморье; 35–37, 39 — Невельск, о. Сахалин; 38 — Менделеево, о. Кунашир).