FIGURES 29–32. Right chelicera of male paratypes of Gaucha ramirezi (29–30; MACN) and Gaucha avexada (31–32; [MZUFBA(ARC)0044]), examined under SEM. 29. Prolateral aspect. 30. Detail of the spicule areas, marked in Fig. 29. 31. Prolateral aspect. 32. Detail of the apex of the flagellum, marked in Fig. 31. Images: R. Botero-Trujillo (reproduced with permission).