Orthoceratium lacustre, head: A face (male) B face (female) D antenna (male) F pedicel, posterior view (male). Orthoceratium sabulosum, head: C face (male) E antenna (male) G pedicel, posterior view (male).

 
 
  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