CLADOENDESIS OF EPHEMEROPTERA
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Kluge et al. 2023: Tenuibaetis: list of figures

     

    

Fig. 42–43. Baetis (Tenuibaetis) ursinus, genitalia of male imagines. Abbreviations: 1, 2, 3 – segments of gonostylus; gd – gonoduct; gv – gonovectis; m.gs – gonostylar muscle; m.gv – muscle of gonovectis; s.s – sterno-styligeral muscle; us – unistyliger.