FIGURES 14–22 in New species and records for the mayfly families Caenidae, Leptohyphidae and Coryphoridae (Ephemeroptera, Pannota) from Venezuelan Guayana's Uplands

FIGURES 14–22. Macunahyphes pemonensis sp. nov.; 14, male imago; 15, female imago; 16, male fore wing. Macunahyphes incognitus: 17, male fore wing. Tricorythopsis yucupe: 18, female imago; 19, nymph, l.v. (at=abdominal tubercle, mk=mesonotal keel); 20, styliger and forceps of pharate male adult (sp=styliger projections, f1=forceps segment 1, f2= forceps segment 2); 21, penes of pharate male; 22, operculate gill, d.v. (tl=transverse line).