Rivudiva coveloae ( Traver, 1971 )

Cruz, Paulo Vilela, Boldrini, Rafael, De Lima, Cláudia R. T. & Hamada, Neusa, 2022, It is a mess! How many species are in Rivudiva trichobasis Lugo- Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae)?, European Journal of Taxonomy 789 (1), pp. 153-191 : 184-185

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.