Leuctra signifera jahorinensis Kaćanski, 1972

Reding, Jean-Paul G., Vinçon, Gilles & Graf, Wolfram, 2023, Notes on Leuctra signifera Kempny, 1899 and Leuctra austriaca Aubert, 1954 (Plecoptera: Leuctridae), with the description of a new species, Zootaxa 5296 (1), pp. 1-15 : 11

Raise of Leuctra signifera jahorinensis Kaćanski, 1972 to species level

Since this very rare taxon, reported only from two sampling stations in the Jahorina Mountains in Bosnia-Herzegovina, clearly differs from all other known species of the L. signifera group ( Kaćanski, 1972; Figs. E1–E 6), it should be raised to species level. Leuctra signifera jahorinensis is presently the only brachypterous taxon ( Fig. E1 ) known from the L. signifera species group. Because Kaćanski (1972) followed Mosely (1932) for her definition of L. signifera (adult males with narrow posteromedial process; Fig. A5), there is no reason to consider her L. s. jahorinensis as a subspecies of L. signifera in this sense, since the posteromedial process of L. s. jahorinensis (Figs. E2–E3) is much wider and has a very deep medial incision. By these features, adult males of L. s. jahorinensis are even closer to those of L. signifera sensu Kempny ( Figs. C1 , C5).

Figures

FIGURES A1–A2. Leuctra signifera, historical material (Austria, GutensteinAlps, Urgersbachtal).A1, Leuctra signifera sensu Kempny 1899, original drawings (figs. 4a and 4b = adult male, dorsal and lateral view); A2, Leuctra signifera sensu Mosely, 1932 (plate I, figs. 3 and 3a = male, dorsal view; female, ventral view).