FIGURES 25–27 in An outlook on larval morphology of Copelatinae diving beetles with phylogenetic considerations (Coleoptera: Adephaga, Dytiscidae)

FIGURES 25–27. Copelatus masculinus Régimbart, 1899, instar III: (25) head capsule, dorsal aspect (scale-like microsculptures not represented); (26) abdominal segment VIII, dorsal aspect; (27) Prementum, dorsal aspect. Scale bars = 0.2 mm (25–26); 0.1 mm (27).