Cephalcia arvensis Panzer 1802
Creators: name: Liston, Andrew
name: Mutanen, Marko
name: Heidemaa, Mikk
name: Blank, Stephan M.
name: Kiljunen, Niina
name: Taeger, Andreas
name: Viitasaari, Matti
name: Vikberg, Veli
name: Wutke, Saskia
name: Prous, Marko
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Cimbicidae
Cephalcia
Cephalcia arvensis

description: Cephalcia arvensis Panzer, 1802 Fig. 6 Cephalcia arvensis Panzer, 1802: vol. 86 pl. 9. &amp;female;. Syntypes. Type locality: Germany [according to title of work]. Blank et al. (2009); Nomen protectum with respect to Psen lucorum Schrank, 1802, nomen oblitum. Cephalcia abietis var. intermedia Hellén, 1948: 40-41. &amp;female;. Syntypes. Type locality: Russia, Karelia, Paanajärvi. Cephalcia intermedia: Vikberg (1982); raised to species rank. Van Achterberg and van Aartsen (1986); synonymy with C. lariciphila (Wachtl, 1898). syn. nov. Notes. <i>Cephalcia intermedia</i> has in recent years mostly been understood as a distinct species close to <i>C. arvensis</i> (e.g. Viitasaari 2002b, Taeger et al. 2006), but with more extensively dark-patterned adults, occurring in northern Europe and the central European mountains. Because of its dark coloration, specimens of <i>C. intermedia</i> can also be mixed up with <i>C. lariciphila</i> (Wachtl, 1898), but the host plant of <i>C. intermedia</i> is <i>Picea</i>, as in <i>C. arvensis</i>, not <i>Larix</i> as in <i>C. lariciphila</i>. The status of <i>C. intermedia</i> and the supposed differences to <i>C. arvensis</i> were discussed by Vikberg (1982), Shinohara (1985), Midtgaard (1987) and Viitasaari (2002b). The only differences between <i>C. arvensis</i> and <i>C. intermedia</i> are in coloration: mainly of the abdomen, and less so of the antennae and legs. Shinohara (1985) pointed out that an unbroken range of color variability occurs between pale <i>C. arvensis</i> and the dark specimens identified as <i>C. intermedia.</i> This is in accordance with our observations, as the amount of dark color on the male abdomen varies considerably even in a single locality (Fig. 6). Small differences in colouration of larvae are possibly not constant, as the larvae of <i>C. intermedia</i> used for comparison were offspring of a single female. At present, there seems to be no convincing evidence for treating <i>C. intermedia</i> as a species distinct from <i>C. arvensis</i>, and we therefore synonymize them.
description: Published as part of <i>Liston, Andrew, Mutanen, Marko, Heidemaa, Mikk, Blank, Stephan M., Kiljunen, Niina, Taeger, Andreas, Viitasaari, Matti, Vikberg, Veli, Wutke, Saskia &amp; Prous, Marko, 2022, Taxonomy and nomenclature of some Fennoscandian Sawflies, with descriptions of two new species (Hymenoptera, Symphyta), pp. 151-218 in Deutsche Entomologische Zeitschrift 69 (2)</i> on page 151, DOI: 10.3897/dez.69.84080
description: {"references": ["Blank, SM, Taeger, A, Liston, AD, Smith, DR, Rasnitsyn, AP, Shinohara, A, Heidemaa, M, Viitasaari, M, 2009. Studies toward a World Catalog of Symphyta (Hymenoptera). Zootaxa 2254 (1): 1 - 96, DOI: https://doi.org/10.11646/zootaxa.2254.1.1", "Vikberg, V, 1982. Notes on the taxonomy and the nomenclature of some mainly Fennoscandian sawflies (Hymenoptera, Symphyta). Notulae Entomologicae 62 (2): 61 - 65", "van Achterberg, C, van Aartsen, B, 1986. The European Pamphiliidae (Hymenoptera: Symphyta), with special reference to the Netherlands. Zooelogische Verhandelingen 234: 1 - 98", "Viitasaari, M, 2002b. The Northern European taxa of Pamphiliidae (Hymenoptera). In: Viitasaari, M, Ed., Sawflies (Hymenoptera, Symphyta) I. A review of the suborder, the Western Palaearctic taxa of Xyeloidea and Pamphilioidea. Tremex, Helsinki: 235 - 358", "Taeger, A, Blank, SM, Liston, AD, 2006. European Sawflies (Hymenoptera: Symphyta) - A Species Checklist for the Countries. In: Blank, SM, Schmidt, S, Taeger, A, Eds., Recent Sawfly Research: Synthesis and Prospects. Goecke and Evers, Keltern: 399 - 504", "Shinohara, A, 1985. Some records of European Pamphiliidae (Hymenoptera). Entomologist's Gazette 36 (2): 161 - 164", "Midtgaard, F, 1987. The Norwegian Xyelidae and Pamphiliidae (Hymenoptera). Fauna Norvegica, Ser. B: Norwegian Journal of Entomology 34 (2): 125 - 130"]}