Cloeodes nocturnus (Navás) Nomen

Nieto, Carolina & Richard, Barton, 2008, The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species, Zootaxa 1727, pp. 1-21 : 11

Cloeodes nocturnus (Navás) Nomen dubium

Baetis nocturnus Navás, 1922: 199 .

Cloeodes nocturnus ; Lugo-Ortiz & McCafferty, 1999: 259.

Discussion. This species was originally described by Navás (1922) from adults and was placed in the genus Baetis . Alba-Tercedor and Peters (1985) noted that the type was very damaged with only head and thorax remaining and thus did not indicate the sex of the specimen. Lugo-Ortiz & McCafferty (1999) examined the description and based on the location of the costal process and venation of the hind wings they transferred this species to Cloeodes . However, the original description is incomplete. A hind wing with 2 longitudinal veins and a costal process located in the basal third of the anterior margin are characters that are not restricted to Cloeodes . Finally, the holotype is in bad condition, thus making it impossible to assign fresh material to this species. For these reasons, Cloeodes nocturnus is proposed here as a nomen dubium.

Distribution. Argentina: Córdoba.