Spodoptera_praefica

<i>Spodoptera praefica</i>

Spodoptera praefica

Species of moth

Spodoptera praefica, the western yellow-striped armyworm, is a moth of the family Noctuidae found from British Columbia to California, east to Utah, and north to Alberta. As of 4 October 2021 it is absent from the EPPO (European and Mediterranean Plant Protection Organization) area, but is considered a high risk for invasion there.[1]

Quick Facts Western yellow-striped armyworm, Scientific classification ...

The wingspan is 35–40 millimetres (1+3⁄8–1+9⁄16 in). It is similar in appearance to Spodoptera ornithogalli, but S. praefica's fore-wings are paler and lack the blurry white stripe. The hind-wings of S. praefica are white or gray and have a small brown dot on the ventral side. Adults are on wing from March to April and from August to September.[1][2]

The larvae are black with yellow stripes and an inverted "y" marking on the head. They feed on the leaves of various herbaceous plants including agricultural crops such as alfalfa, potato, rice, sugar beet, and sweet potato.[1]

References

  1. [1]
    "Spodoptera praefica". EPPO (European and Mediterranean Plant Protection Organization). Retrieved 2021-10-05.
  2. [2]
    Will, Kip; Gross, Joyce; Rubinoff, Daniel; Powell, Jerry A. (2020). Field Guide to California Insects. Oakland, California: University of California Press. pp. 386–387. ISBN 9780520288744.


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