Fig. 20 in It is a mess! How many species are in Rivudiva trichobasis Lugo- Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae)?

Fig. 20. Rivudiva venezuelensis (Traver, 1943) male imago, holotype (PERC). A. Head (l.v.). B. Head (d.v.). C. Body (d.v.). D. Body (l.v.). E. Detail of forewing. F. Detail of genitalia (v.v.). G. Detail of genitalia (d.v.). H. Detail of genitalia (v.v.). Scale bars: A = 0.44 mm; B = 0.23 mm; C–D = 1.3 mm; E = 1.25 mm; F–H = 0.13 mm.