FIGURES 18–21 in A new species of the genus Hydroporus Clairville, 1806 from the Central Rif mountains of northern Morocco (Coleoptera: Dytiscidae)

FIGURES 18–21. Drawings of fifth protarsomere and anterior claw (top) and posterior claw (bottom) in male (18, 20) and female (19, 21) of (18–19) Hydroporus rifensis sp. n. and (20–21) H. gyllenhalii. All drawings at same scale (scale bar: 0.1 mm).