Agrotis munda Walker, 1856
Brown or Pink Cutworm
(one synonym : Agrotis scapularis Felder & Rogenhofer, 1875)
NOCTUINAE ,   NOCTUIDAE ,   NOCTUOIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley

Agrotis munda
(Photo: courtesy of Graham Goodyer, New Sout Wales Agriculture)

This Caterpillar hides in the soil at the base of the foodplant by day, and climbs the plant to feed by night. It feeds on a wide variety of herbaceous plants:

  • Lucerne ( Medicago sativa, FABACEAE ),
  • Cotton ( Gossypium hirsutum, MALVACEAE ),
  • Maize ( Zea mays, POACEAE ), and
  • Tobacco ( Nicotiana tabacum, SOLANACEAE ).

    and other crops and weeds. Its habit of feeding on crops makes it an agricultural pest.

    As the Caterpillars grow, the later instars become darker, until they end up dark brown. They grow to length of about 5 cms.

    The pupa is enclosed in a cocoon under the soil.

    Agrotis munda
    (Photo: courtesy of Alan Melville, Tasmania)

    The adult moths have a complex grey-brown pattern on the forewings. The hindwings are white. At rest the moth holds its wings like a tent over its body. The moth has a wingspan of about 4 cms.

    Agrotis munda
    (Photo: courtesy of Laura Levens, Upper Beaconsfield, Victoria)

    The species is found on the Pacific islands and

  • New Zealand,

    as well as over most of Australia, including:

  • Northern Territory,
  • Queensland,
  • New South Wales,
  • Victoria,
  • Tasmania,
  • South Australia, and
  • Western Australia.

    Agrotis munda
    female, drawing by Felder & Rogenhofer, listed as Agrotis scapularis
    ,
    Reise der Osterreichischen Fregatte Novara,
    Band 2, Abtheilung 2 (5) (1875), Plate CX, fig. 13,
    image courtesy of Biodiversity Heritage Library, digitized by Smithsonian Libraries.


    Further reading :

    Ian F.B. Common,
    Moths of Australia, Melbourne University Press, 1990, fig. 50.6, pp. 43-44, 64, 467.

    Rudolf Felder & Alois F. Rogenhofer,
    Zoologisher Theil,
    Reise der Osterreichischen Fregatte Novara,
    Band 2, Abtheilung 2 (5) (1875), p. 2, and also Plate 110, fig. 13.

    Francis Walker,
    Catalogue of Lepidoptera Heterocera,
    List of the Specimens of Lepidopterous Insects in the Collection of the British Museum,
    Part 10 (1856), p. 348, No. 99.

    Paul Zborowski and Ted Edwards,
    A Guide to Australian Moths, CSIRO Publishing, 2007, p. 197.


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    (updated 15 April 2013)