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Review of the Nearctic Lonchopteridae (Diptera), including descriptions of three new species

  • John Klymko (a1) and S.A. Marshall (a1)


The Nearctic species of Lonchoptera Meigen are reviewed, including three new species: L. barberi Klymko sp. nov. from Manitoba, Newfoundland, Ontario, Quebec, Iowa, Michigan, Minnesota, and New Hampshire, L. megaloba Klymko sp. nov. from British Columbia and California, and L. longiphallus Klymko sp. nov. from British Columbia and the Northwest Territories. Lonchoptera borealis Curran is proposed as a new junior synonym of L. impicta Zetterstedt, and L. occidentalis Curran is proposed as a new junior synonym of L. uniseta Curran. Lonchoptera nigrociliata Duda, formerly known only from the Palaearctic Region, is recorded from the Yukon and Alaska. Descriptions, a key, and Nearctic distribution maps are presented. Phylogenetic relationships are briefly discussed and two sister species pairs are documented.

Nous faisons la révision des espèces néarctiques de Lonchoptera Meigen et décrivons trois espèces nouvelles: L. barberi Klymko sp. nov. du Manitoba, de Terre-Neuve, de l’Ontario, du Québec, de l’Iowa, du Michigan, du Minnesota et du New Hampshire, L. megaloba Klymko sp. nov. de Colombie-Britannique et de Californie et L. longiphallus Klymko sp. nov. de Colombie-Britannique des Territoires du Nord-Ouest. Nous proposons que L. borealis devienne un nouveau synonyme plus récent de L. impicta Zetterstedt et que L. occidentalis Curran devienne un nouveau synonyme plus récent de L. uniseta Curran. Lonchoptera nigrociliata Duda, connu antérieurement seulement de la région paléarctique, est signalé au Yukon et en Alaska. Nous présentons des descriptions, une clé d’identification et des cartes des répartitions néarctiques. Nous discutons brièvement des relations phylogénétiques et nous présentons des données qui appuient la reconnaissance de deux couples d’espèces soeurs.

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