Flight densities of adult black flies (Diptera: Simuliidae) and control strategies in the Betsumata area, upper Ukawa River, Niigata Prefecture, Japan - Kimio Hirabayashi; Hiroyoshi Takahashi; Kazuo Goino; Masahiro Kobayashi; Kizuku Kogure; Seiya Ikejima (Medical Entomology and Zoology, 2025)