Orthoceratium lacustre, male: A femur I (posteroventral view) B tarsomere I5, with left tarsus on the left and right tarsus on the right hand side (dorsal view). Orthoceratium sabulosum, male: C femur I (posteroventral view).

 
 
  Part of: Pollet M, Stark A (2018) The quest for the identity of Orthoceratium lacustre (Scopoli, 1763) reveals centuries of misidentifications (Diptera, Dolichopodidae). ZooKeys 782: 49-79. https://doi.org/10.3897/zookeys.782.26329