Baetis australasica 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 : 325

Baetis australasica F.-J. Pictet, 1843

Baetis australasica F.-J. Pictet, 1843 -1845: 189-190, pl. 24, fig. 1.

Leptophlebia australasica . – Eaton, 1871: 78 (transfer).

Atalophlebia australasica . – Eaton, 1888: 86 (transfer).

Atalophlebia costalis ( Burmeister, 1839) . – Ulmer, 1920b: 115 (synonymization).

Atalophlebia australasica . – Harker, 1954: 248 ( Baetis costalis Burmeister, 1839 is a nomen praeoccupatum).

Accepted name: Atalophlebia australasica (F.-J. Pictet, 1843).

Locus typicus: “… Nouvelle-Hollande ” [New South Wales, Australia].

Type material: NMW; holotype [by monotypy], ♂ imago; Pictet vidit / Atalophlebia costalis Burm. ( australasica Pict. ) [Ulmer’s handwriting].

Remarks: F.-J. Pictet mentioned “Les deux exemplaires figurés …” and described the male imago and [female] subimago, attributing the latter only doubtfully (F.-J. Pictet, 1843: 189 “Id.? Pseudimago, Planche XXIV, FIG. 2 ”; F.-J. Pictet, 1845: 10 “Probablement le mâle [sic] subimago ... “). According to the International Commission on Zoological Nomenclature (1999: article 72.4.1), the male specimen is therefore the holotype by monotypy.

Kollar probably had sent three specimens to F.- J. Pictet: a male (listed above), a female subimago (Lotz. 12 [= Johann Lhotsky, who collected in New South Wales in 1832-1838] / australasica subimago), and a female (Pictet vidit / Lotz. 11).

Ulmer (1921: 243) listed “drei Typen [three types]” but obviously confused one label. The remark “Sidney” [probably in F.M. Brauer’s handwriting] refers to an additional male specimen which was collected during the Novara Expedition in November 1858 but was not examined by F.-J. Pictet.

Ulmer (1920b) synonymized B. australasica F.-J. Pictet, 1843 with B. costalis Burmeister, 1839 , but Harker (1954) recognized that Baetis costalis Burmeister, 1839 is a homonym of B. costalis Curtis, 1834 and so she reinstalled the older synonym as the valid name of the species.

Figures

Fig. 2. Ephemera glaucops F.-J. Pictet, 1843, labels of one male imago syntype.