A new species of Simulium (Boreosimulium) from Hokkaido, Japan (Diptera: Simuliidae)

  • TAKAOKA Hiroyuki
    Department of Infectious Disease Control, Faculty of Medicine, Oita University:Division of Epidemiology, Culture, and Communication, Institute of Scientific Research, Oita University
  • OTSUKA Yasushi
    Department of Infectious Disease Control, Faculty of Medicine, Oita University
  • FUKUDA Masako
    Department of Infectious Disease Control, Faculty of Medicine, Oita University:Division of Epidemiology, Culture, and Communication, Institute of Scientific Research, Oita University

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Other Title
  • わが国の北海道で採集されたプユ属ホッポウプユ亜属の1新種について
  • new species of Simulium Boreosimulium from Hokkaido Japan Diptera Simuliidae

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Abstract

Simulium (Boreosimulium) tokachiense sp. nov. is described on the basis of adults, pupae and mature larvae collected in Tokachi, Hokkaido, Japan. This is the second species of the subgenus Boreosimulium from Japan, and is most similar to S. (B.) balteatum described from North America by having the paramere with one medial and three apical hooks, the style with the dorsomesal margin bulged, and the pupal gill with the dorsal stalk branching near the middle of the gill. However, this new species is distinguished in the pupa by the gill with the ventral stalk very short and in the larva by the antenna without hyaline bands and the abdomen with a weakly colored transverse band on each segment.

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