Rhithrogena picteti Sowa, 1971

Baetis semicolorata . – F.-J. Pictet, 1843 -1845: 208-211, pl. 22, figs 4-7 (nec Baetis semicolorata Curtis, 1834; misidentification).

Rhithrogena semitincta . – Kimmins, 1936: 280, fig. 2 (nec Baetis semitincta Pictet, 1843; misidentification).

Rhithrogena picteti Sowa, 1971: 903 (original description).

Locus typicus: “… la Versoix à Richelien…”.

Type material: MHNG; holotype, ♂ imago; bords de la Versoix à Richelien vers 450 m.; 19.V.1968; leg J.C. Régnier . – MHNG; paratypes, 3 ♂ imagines; same data as for holotype .

Remarks: Sowa (1971) described this species based on fresh material collected by J.-C. Régnier, a former technician at the MHNG, in the Versoix River, close to Geneva. In the F.-J. Pictet collection at the MHNG there are several pinned specimens which had also been studied by Kimmins (in part; 1936) and by Sowa. However, contrary to what Sowa stated, these specimens do not constitute the “original material” studied by F.-J. Pictet (“… commune dans les ruisseaux des environs de Genève ”). The old MHNG series consists of 12 male imagines labelled: 620 Hindelbank 48 Suisse coll. Pictet / Rh. semicolorata Curtis / Rhithrogena picteti Det. R. Sowa. This locality is not mentioned in the original work of F.-J. Pictet and the material was certainly collected later by Meyer-Dür.