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  • J.D. Lafontaine (a1) and V.S. Kononenko (a2)

The Lasionycta skraelingia (H.-S.) species complex, formerly considered to include only one species, is shown to consist of six species. Three species (Lasionycta buraetica Kononenko, from the Sayan Mountains, USSR; L. corax Kononenko from the Upper Kolyma River area, USSR; and L. taigata Lafontaine from northern Canada) are described as new. The name L. alpicola, proposed by Hampson as an aberration of L. skraelingia, is validated as a species. The taxon Lasionycta phaea (Hampson), currently treated as a subspecies of L. impingens (Walker), is shown to be a distinct species in the L. skraelingia complex; a lectotype is designated for Anarta phaea Hampson. Adults and genitalia are illustrated for the six species; a key to species and distribution maps are also included. Lasionycta membrosa (Morrison, 1875) is placed in synonymy with L. subdita (Möschler, 1860).

Le complexe spécifique de Lasionycta skraelingia (H.-S.) qui n’était censé renfermer qu’une seule espèce en comprend maintenant six. L’auteur décrit trois espèces comme étant nouvelles, soit Lasionycta buraetica Kononenko des montagnes Sayan d’U.R.S.S., L. corax Kononenko de la région du cours supérieur de la Kolyma (U.R.S.S.)et L. taigata Lafontaine du nord du Canada. Il confirme l’espèce L. alpicola proposée par Hampson comme une aberration de L. skraelingia. Le taxon Lasionycta phaea (Hampson), actuellement considéré comme une sous-espèce de L. impingens (Walker), s’avère être une espèce distincte au sein du complexe L. skraelingia; l’auteur désigne un lectotype pour Anarta phaea Hampson. L’ouvrage illustre les adultes et les genitalia des six espèces et comprend également une clef d’identification des espèces et des cartes de distribution. Lasionycta membrosa (Morrison, 1875) est fait synonyme de L. subdita (Möschler, 1860).

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The Canadian Entomologist
  • ISSN: 0008-347X
  • EISSN: 1918-3240
  • URL: /core/journals/canadian-entomologist
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