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(Z,E)-6,8-heneicosadien-11-one: major sex-pheromone component of Orgyia vetusta (Lepidoptera: Lymantriidae)

  • R. Gries (a1), P.W. Schaefer (a2), H.J.S. Yoo (a3), M. Greaves (a4) and G. Gries (a1)...


The western tussock moth, Orgyia vetusta Boisduval (Lepidoptera: Lymantriidae), formerly known as Hemerocampa vetusta (Boisduval), occurs primarily in coastal areas of central California and south into Mexico, with occasional records east of the central Sacramento and San Joaquin valleys (Ferguson 1978). Two biotypes, feeding on perennial yellow bush lupine, Lupinus arboreus Sims (Fabaceae), or silver dune lupine, Lupinus chamissonis Eschsch. (this study), and on California live oak, Quercus agrifolia Née (Fagaceae), respectively, have been recognized and were originally considered two separate species (Edwards 1881; Ferguson 1978). Various fruit and nut trees have also been reported as host plants (Atkins 1958)


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