Rivudiva coveloae (Traver, 1971)

Fig. 19

Baetis coveloae Traver, 1971: 61 .

Camelobaetidius coveloae – Lugo-Ortiz & McCafferty 1999: 258. — Domínguez et al. 2006: 129.

Rivudiva coveloae – Salles & Nascimento 2009: 234. — Salles et al. 2020: 42.

Diagnosis

MALE IMAGO. 1) dorsal portion of turbinate eyes with inner margins parallel, and oval (Fig. 19A); 2) hind wings present (Fig. 19D); 3) anterior margin of abdominal terga darker (Fig. 19A); 4) unistyliger cylindrical with small inner projection (Fig. 19C); 5) first segment of gonostylus elongated, length more than half of second segment, third segment elongate (Fig. 19C, E); 6) styliger plate concave, with one medial spine (Fig. 19F–G); 7) gonovectis short, sinuous, not deep into segment IX (Fig. 19E–F).

Material examined

Holotype URUGUAY • ♂; Prov. Maldonado, Cerro Animas; 14 Sep. 1950; C.S. Carbonell leg.; PERC.