Figs 17-21 in To the knowledge of Sarabandus robustus (LECONTE) (Col.: Scirtidae: Scirtinae), and on the groundplan of male marsh beetle genitalia

Figs 17-21: Suggested homologies between penes of different Scirtinae. (17) Sacodes fuscipennis, overview of tegmen and penis; (18) Sacodes fuscipennis, enlarged apex of penis in dorsal (d) and ventral (v) views; (19) Microcara testacea, penis, ventral; (20) Pseudomicrocara orientalis, caudal part of penis, ventral view, with detail of apex of parameroid in dorsal view; (21) Sarabandus robustus, partial ventral view of penis tip. Not to scale.