Morphology of the ventral tube of males of Sphaeridia spp. (cont.) A posterior side in S. cerastes B apex in S. cerastes C anterior side in S. chisacae Bretfeld & Gauer, 1994 D posterior side in S. chisacae E posterior side in S. coronata Bretfeld & Gauer, 1994 F posterior side in S. decemdigitata Bretfeld & Schulz, 2012 G apex in S. fibulifera Bretfeld & Gauer, 1994 H anterior side in S. fibulifera I apex in S. fluminensis Arlé, 1984 J apex in S. fluminensis (another view) K apex in S. franklinae Bretfeld & Gauer, 1994 L posterior side in S. franklinae. Figures adapted from species’ original descriptions.

 
 
  Part of: Medeiros GS, Silva CDD, França JS, Godeiro NN, Bellini BC (2023) Two new species of Sminthurididae (Hexapoda, Collembola, Symphypleona) from Brazil with notes on Denisiella Folsom & Mills and Sphaeridia Linnaniemi. ZooKeys 1173: 1-41. https://doi.org/10.3897/zookeys.1173.106855