Figure 14 from: Bilton DT, Ribera I (2017) A revision of Meladema diving beetles (Coleoptera, Dytiscidae), with the description of a new species from the central Mediterranean based on molecules and morphology. ZooKeys 702: 45-112. https://doi.org/10.3897/zookeys.702.14787

Figure 14 - Meladema species male genitalia. Median lobe, lateral and ventral view; paramere (DNA voucher codes where applicable). A M. coriacea Spain, Cáceres, nr. Plasencia B M. lepidoptera sp. n. holotype, Corsica, Cap Corse (NHM-IRM12E) C M. imbricata, La Gomera, El Cedro (NMH-IRM3A) D M. lanio, Madeira, Rabacal. Silhouette indicates orientation of median lobe for imaging in ventral view. Scale bar = 1 mm.