Rivudiva Lugo-Ortiz & McCafferty 1998

Cruz, Paulo Vilela, Salles, Frederico Falcão & Hamada, Neusa, 2020, A cladistic approach for generic delimitation of Paracloeodes Day, Rivudiva Lugo-Ortiz & McCafferty, and Varipes Lugo-Ortiz & McCafferty (Ephemeroptera: Baetidae), Insect Systematics & Evolution 51 (2), pp. 256-275 : 273

Rivudiva Lugo-Ortiz & McCafferty 1998

In addition to recovering synapomorphies, all Rivudiva species were observed to have lingua with apical tuft of setae, absence of transverse row of setae on forefemur and presence of transverse row of setae on mid and hind femora at proximal third with sockets not touching each other ( Fig. 23 ).

Figures

Figs. 16–30. 16, detail of forefemur concave setae on dorsal margin (Paracloeodes atroari) Char. 77; 17, detail of forefemur, black arrow indicates the FLRNDM = forefemur longitudinal row of setae near dorsal margin on anterior surface (Paracloeodes eurybranchus) Char. 80; 18, detail of forefemur, black arrow indicates the FLRNML = forefemur longitudinal row of setae at middle on anterior surface (Paracloeodes sp.) Char. 82; 19, anterior surface of forefemur, black arrow indicates the vestigial row of setae, (Rhopyscelis singuil comb. n.) Char. 85 and 86; 20, anterior surface of hind femur, black arrow indicates the transversal row of setae, (Rhopyscelis singuil comb. n.) Chars 89 and 90; 21, anterior surface of forefemur, black arrow indicates the vestigial row of setae, (Rhopyscelis caldensis comb. n.) Chars 85 and 86; 22, anterior surface of hind femur, black arrow indicates the transversal row of setae, (Rhopyscelis caldensis comb. n.) Chars 89 and 90; 23, detail of transversal row of setae on hind femur, (Rivudiva trichobasis) Chars 89 and 91; 24, detail of transversal row of setae on hind femur, (Varipes helenae) Chars 89 and 91; 25, foreclaw, black arrow indicates the denticles apically directed (Rhopyscelis singuil comb. n.) Chars 96–101; 26, foreclaw, black arrow indicates the denticles apically directed (Rhopyscelis caldensis comb. n.) Chars 96–101; 27, hind claw, black arrow indicates the denticles apically directed (Rhopyscelis caldensis comb. n.) Chars 96– 101; 28, hind claw, black arrows indicate the regularity of row of denticles, (Rivudiva trichobasis) Chars 99 and 102; 29, foreclaw, black arrow indicates the absence of denticles on base, red arrow indicates the conical and apical denticles, (Varipes lasiobrachius) Chars 106 and 107; 30, detail of foreclaw, black arrow indicates apical denticles on claw extremely higher than the others (Gen. A.) Char. 104.