Potamanthus inanis F.-J. Pictet, 1843

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 : 326

Potamanthus inanis F.-J. Pictet, 1843

Fig. 6

Potamanthus inanis F.-J. Pictet, 1843 -1845: 232-234, pl. 24, fig. 4.

Potamanthus (?) inanis . – Eaton, 1888: 296 (incertae sedis).

Leptohyphodes inanis . – Ulmer, 1920a: 50-51 (transfer). – Domínguez et al., 2006: 279.

Accepted name: Leptohyphodes inanis (F.-J. Pictet, 1843).

Locus typicus: “… elle provient du Brésil ” [Rio de Janeiro].

Type material: NMW; 7 syntypes ( Fig. 6A ): 6 ♂ imagines, Shtt.[Schott] (blue label) / Pictet vidit; 1 ♂ imago, Shtt.[Schott] (blue label) / Pictet vidit / Leptohyphodes (Ulm.) inanis Pictet Typen [Ulmer’s handwriting] .

Remarks: Some specimens are more or less damaged but on the whole in comparatively good condition ( Fig. 6 B-C). Heinrich Wilhelm Schott collected in Rio de Janeiro during 1817-1821, where he was practically all the time restricted to the vicinity of the city ( Schott, 1822). Two of his excursions reached Canta Gallo (= Cantagalo 21°58” S 42°22 ”W) and Macacú (22°42’S 43°02”W). Ulmer (1921: 244) listed “acht Typen ” and provided a redescription of the material. It seems probable that Kollar sent just a sample of 2 specimens to F.-J. Pictet (he based his description on “... deux exemplaires secs”), and afterwards labelled the complete series. F.-J. Pictet, however, seems to have recognized this and according to the International Commission on Zoological Nomenclature (1999: article 72.4.1.1), the seven existing specimens constitute the type series. Leptohyphodes inanis is the type species of the genus Leptohyphodes Ulmer, 1920a and is so far only known from Brazil ( Domínguez et al., 2006).

Figures

Fig. 6. Leptohyphodes inanis (F.-J. Pictet, 1843). (A) Type series. Scale bar: 5 mm. (B) Syntype. Scale bar: 1 mm. (C) Labels of the type series. Scale bar: 5 mm.