FIGURES 22.1–22.6 in Phylogeny and taxonomic revision of Deronectina Galewski, 1994 (Coleoptera: Dytiscidae: Hydroporinae: Hydroporini)

FIGURES 22.1–22.6: (1–4): Median lobe of aedeagus in ventral and dorsal view of: (1) Zaitzevhydrus f. formaster (modified from Fery et al. 1996), (2) Oreodytes shorti (modified from Shaverdo & Fery 2006), (3) Scarodytes antoni (modified from Fery & Šťastný 2007), (4) Hydroporus longulus Mulsant & Rey, 1861 (modified from Fery 1999). (5–6): Stictotarsus duodecimpustulatus: (5) parameres, (6) median lobe in lateral view. Scale bars = 0.25 mm.