Hofmannophila pseudospretella (Stainton, 1849)
Brown House Moth
(one synonym: Gelechia improbella Walker, 1869)
OECOPHORINAE ,   OECOPHORIDAE ,   GELECHIOIDEA
 
Don Herbison-Evans,
(donherbisonevans@outlook.com)
and
Stella Crossley


(Photo: courtesy of Ben Smart, Manchester, UK)

These Caterpillars are synanthropic house pests. They are off-white with a brown head. They feed on virtually any vegetable or animal material, including fur, leather, grain products, textiles, dried fruit, dead insects, and books and book bindings. They prosper in damp humid conditions, and are able to enter a dormant state if their environment becomes too dry.

The caterpillars are often found in carpets in damp spots, along the edges of exterior sliding doors or under furniture. They grow to a length of about 2 cms.


(Photo: courtesy of Donald Hobern, Aranda, Australian Capital Territory)

The adult moths are brown with dark speckles, and several prominent black spots on each forewing. The hindwings are off-white shading to brown at the wingstips. The moths also have long floppy antennae. The moths have a wingspan of about 2 cms. The pheromones of this species have been identified.


(Photo: copyright of Brett and Marie Smith, at Ellura Sanctuary, South Australia)

The species originally came from India. It now occurs throughout the world, eg:

  • Belgium,
  • Chile,
  • Great Britain,
  • Iceland,
  • Madeira,
  • New Zealand, and
  • USA,

    and was introduced into Australia by unfortunate accident, where it now occurs over much of the continent, including

  • Norfolk Island,
  • Australian Capital Territory,
  • Victoria,
  • Tasmania, and
  • South Australia.

    Various strategies have been suggested to control the species, including :

  • removal of all potential foodstuffs,
  • insecticides, and
  • the mite Cheyletus eruditus.


    underside
    (Photo: copyright of Brett and Marie Smith, at Ellura Sanctuary, South Australia)


    Further reading :

    Ian F.B. Common,
    Oecophorine Genera of Australia I:
    The Wingia Group (Lepidoptera: Oecophoridae)
    ,
    Monographs on Australian Lepidoptera Volume 3,
    CSIRO Publishing, Melbourne 1994, pp. 19, 33, 34, 37.

    P.J. Gerard,
    The digestive system of the keratin-feeding larvae of Hofmannophila pseudospretella (Lepidoptera: Oecophoridae),
    New Zealand Journal of Zoology,
    Vol. 29 (2002), pp. 15-22.

    Henry Tibbats Stainton,
    An attempt at a systematic catalogue of the British Tineidae & Pterophoridae,
    London (1849), p. 14.

    G.E. Woodroffe,
    A Life-history Study of the Brown House Moth, Hofmannophila pseudospretella (Staint.) (Lep., Oecophoridae),
    Bulletin of Entomological Research,
    Volume 41 (1951), Issue 3, pp. 529-553.


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    (updated 2 June 2013, 13 February 2017)