Fig. 12 in It is a mess! How many species are in Rivudiva trichobasis Lugo- Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae)?

Fig. 12. Rivudiva uiara sp. nov., holotype (INPA). A. Labrum (left v.v., right d.v.). B. Left mandible. C. Right mandible. D. Maxilla. E. Apex of maxilla v.v. (DS = dentiseta, DC = dorsal canine, MC = medial canine). F. Hypopharynx. G. Labium (left v.v., right d.v.). H. Variation of apex of segment II and segment III of labial palp. I. Shape of distal rows of setae of glossa. Not to scale.