Morphology of the ventral tube of males of Sphaeridia spp. (cont.) A apex in S. torifera B posterior side in S. tropica Bretfeld & Schulz, 2012 C detail of the apex of the posterior side in S. tropica D detail of the apical lobes in S. tropica E posterior side in S. tschirnhausi Bretfeld & Schulz, 2012 F posterior side in S. vampyra Bretfeld & Schulz, 2012 G lateral side in S. vampyra, detail of the posterior median plane H lateral side in S. vampyra, detail of the posterior lateral plane I posterior side in S. winteri Massoud & Delamare-Deboutteville, 1964. Figures adapted from species’ original descriptions, with the exception of S. winteri which was adapted from Bretfeld (1997).