Dolerus junci Liston & Mutanen & Heidemaa & Blank & Kiljunen & Taeger & Viitasaari & Vikberg & Wutke & Prous 2022, nom. rev.

• Main Authors: Liston, Andrew, Mutanen, Marko, Heidemaa, Mikk, Blank, Stephan M., Kiljunen, Niina, Taeger, Andreas, Viitasaari, Matti, Vikberg, Veli, Wutke, Saskia, Prous, Marko
• Format: Other/Unknown Material
• Language: unknown
• Published: 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hymenoptera; Tenthredinidae; Dolerus; Dolerus junci; Fennoscandia
• Online Access: https://zenodo.org/record/7019679; https://doi.org/10.5281/zenodo.7019679

Dolerus junci (Stephens, 1835) nom. rev. Dosytheus Junci [sic!] Stephens, 1835: 84-85. Sex not explicitly stated. Syntypes. Published type localty: "Devonshire, and near Windsor" (England). Lectotype designated below. Dolerus Busaei [sic!] Snellen van Vollenhoven, 1858: 277. Sex not given. Lectotype ♂ designated by Thomas (1987). Type locality: “Haarlem” (Netherlands). syn. nov. Dolerus cothurnatus auct. nec Serville, 1823 (e.g. Benson 1952, Zhelochovtsev 1994, Lacourt 2020). Dolerus thargitai Zombori, 1994: 185-187. ♀. Holotype. Type locality: Csíkszentkirály, Borsáros, Kérújfürdő: Tolvajos patak (Romania). syn. nov. Remarks. Similarly to the melanic color form of D. yukonensis (see below), which was described as a distinct species, D. scoticus, by Cameron (1881a), the melanic form of D. junci was also described as a distinct species, D. thargitai, by Zombori (regarded as a synonym of D. yukonensis / D. scoticus until now). The melanic color form of D. junci has also been recorded from central Europe (Germany) and southern Europe (Italy, Switzerland: see, e.g. Pesarini 2012), but is not known from Fennoscandia. The males of the melanic forms of D. junci (01.06.1984) and D. yukonensis (24.05.1984) have been collected at the same locality at nearly the same time (Germany: Federsee, Brackenhof, leg. E. Jansen, CEJ). In addition to their different penis valve structure and other characters used in the keys by Benson (1952) and Zhelochovtsev (1994), D. junci and D. yukonensis differ in the shape and sculpture of the mesoscutellar appendage: almost unsculptured and without a distinct longitudinal keel in the former, and clearly sculptured and with a distinct keel in the latter. Most likely, the melanic color form of D. junci does not occur within the geographic range of D. incisus, but they can also be distinguished by the shape and the sculpture of the mesoscutellar appendage: meshed (nearly matt) and long, with a distinct median longitudinal keel (D. incisus) versus short and almost unsculptured (more or less ...