Asthenopodes picteti Hubbard, 1975

Sartori, Michel & Bauernfeind, Ernst, 2020, Mayfly types and additional material (Insecta: Ephemeroptera) examined by F. - J. Pictet and A. - E. Pictet, housed in the Museums of Natural History of Geneva and Vienna, Revue suisse de Zoologie 127 (2), pp. 315-339 : 332-333

Asthenopodes picteti Hubbard, 1975

Palingenia albicans Percheron in Guerin & Percheron, 1838. – F.-J. Pictet, 1843 -1845: 149-150, pl. 13, figs 1-3 (nec Ephemera albicans Percheron in Guérin & Percheron, 1838; misidentification).

Asthenopus albicans (F.-J. Pictet, 1843) (unavailable species name). – Ulmer, 1921: 239 (transfer).

Asthenopodes albicans (F.-J. Pictet, 1843) (unavailable species name). – Ulmer, 1924a: 27 (transfer).

Asthenopodes picteti Hubbard, 1975: 111 (establishment of available species name). – Molineri et al., 2015: 73 (reverse transfer).

Asthenopus picteti . – Hubbard & Domínguez, 1988: 209 (transfer).

Locus typicus: “… il provient du Brésil ” [Rio de Janeiro province, Brasil].

Type material: NMW; 1 ♂, presumably a syntype; Shtt[= Schott ]. [blue paper] / Pictet vidit / Asthenopus albicans Pict. Type [Ulmer’s handwriting] / TYPE [printed on red paper]. Damaged, most legs, hind wings and abdomen missing . – NMW; 1 ♂, presumably a syntype; Pb [= probably reads Paraíba, collected by Schott]. [blue paper] / Pictet vidit / Campsurus truncatus Ulmer [in Ulmer’s handwriting] .

Remarks: The status of the NMW material is not altogether clear; these are probably syntypes (male imagines). The first specimen had been collected by H.W. Schott during 1817-1821 in Brazil, Rio de Janeiro province. Although F.-J. Pictet stated “L’exemplaire figuré m’a été communiqué par le Musée de Vienne, …”, Ulmer (1921: 239) found two male specimens arranged under the name Palingenia albicans Pictet and identified the second specimen as Campsurus truncatus Ulmer, 1920a .

It is not known whether F.-J. Pictet really examined both specimens or rather Kollar later added a second male when he labelled the material. F.-J. Pictet’s description and illustration, however, agree with the specimen labelled “type” by Ulmer, suggesting that this specimen actually represents the holotype by monotypy.

Palingenia albicans F.-J. Pictet, 1843 nec Ephemera albicans Percheron, 1838 , which was transferred as Campsurus albicans by Eaton (1883), has a long and controversial nomenclatural history. Palingenia albicans F.-J. Pictet, 1843 is actually a misidentification, not a formally established species name. Ulmer (1924b) based his genus Asthenopodes on this incorrectly named taxon, and Hubbard (1975) proposed a valid name (nomen novum) in honour of F.-J. Pictet, because the speciesgroup name used by Ulmer was not available (speciesgroup name wrongly applied through misidentification; International Commission on Zoological Nomenclature, 1999: article 49).