Ridens tristis (Draudt, [1922]);  Comments: TL: [Bolivia] .

Ridens tristis (TYPE of Murgaria albomarginata Tessmann, 1928, TL: Peru) Type [MFNB]. Photo taken by Bernard Hermier. Any use of this image, except for personal study, requires prior written consent of the Museum für Naturkunde der Humboldt-Universität, Berlin, Germany.