This image was created by Paul Krombholz back when Megatibicen and Neotibicen were just Tibicen.
Top row, left to right:
Neotibicen davisi (formerly Tibicen davisi)
Megatibicen grossus (formerly Megatibicen grossus, Tibicen auletes)
Megatibicen figuratus (formerly Tibicen figurata)
Megatibicen pronotalis (formerly Tibicen marginalis)
Bottom row, left to right:
Neotibicen tibicen tibicen (formerly Tibicen chloromera)
Neotibicen pruinosus (formerly Tibicen pruinosa)
Neotibicen lyricen (formerly Tibicen lyricen)