Piestoceros conjunctella (Walker, 1863)
 (formerly: Incurvaria conjunctella)
YPONOMEUTIDAE,   YPONOMEUTOIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Piestoceros conjunctella
(Photo: courtesy of Ken Harris, Lake Condah, Victoria)

The adult moths of this species have brown forewings, each with vague and variable dark and gold markings. The hindwings are yellow, each with a wide brown margin and a brown band along the hind-margin. The head and the thorax are dark brown. The antennae have a pale section along the middle. The wingspan of the male moth is about 1 cm.

Piestoceros conjunctella
(Photo: courtesy of CSIRO/BIO Photography Group, Centre for Biodiversity Genomics, University of Guelph)

The species has been found in

  • Queensland, and
  • New South Wales, and
  • Victoria.

    Piestoceros conjunctella
    Drawing by Edward Meyrick
    Genera Insectorum, Fascicules 164 (1912), Pl. 2, No. 19.,
    image courtesy of Biodiversity Heritage Library,
    digitized by University of Illinois Urbana Champaign Library.

    The species has formerly been put in Order LEPIDOPTERA by various authors, in various families including PSYCHIDAE, GLYPHIPTERIGIDAE, and YPONOMEUTIDAE, but should probably be put in an entirely different Order: TRICHOPTERA (Caddis Flies).

    Further reading :

    Edward Meyrick,
    Genera Insectorum,
    Fascicules 164 (1912), Pl. 2, No. 19.

    Francis Walker,
    Tortricites & Tineites,
    List of the Specimens of Lepidopterous Insects in the Collection of the British Museum,
    Part 28 (1863), Pl. 2, No. 19.

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    (written 10 April 2019, updated 2 March 2022)