FIGURES 1–2. Metallactus generosus Suffrian, 1866 in Revision of the Metallactus generosus species-group with a preliminary evaluation of the effectiveness of the endophallus morphology in distinguishing critical sibling species (Coleoptera: Chrysomelidae: Cryptocephalinae)

FIGURES 1–2. Metallactus generosus Suffrian, 1866 (1), M. argentinensis Jacoby, 1907 (2): 1a–b: habitus; 1c–e: median lobe of aedeagus in ventral (c), dorsal (d) and lateral (e) view [0.8 mm]; 1f: sclerites of endophallus in lateral view [0.4 mm]; 1g: spermatheca [0.6 mm]; 1h: antenna [1.6 mm]. 2a–b: habitus; 2c–e: median lobe of aedeagus in ventral (c), dorsal (d) and lateral (e) view [0.8 mm]; 2f: sclerites of endophallus in lateral view [0.5 mm]; 2g: spermatheca [0.4 mm]; 2h: antenna [1.5 mm]. 1a–b: lectotype; 2a–b: lectotype. scI–IV: sclerites I–IV of endophallus; ds: dorsal spicule; sd: setose depression. Square brackets: length of scale segment.