Heterocrossa canescens explained

Heterocrossa canescens is a species of moth in the family Carposinidae. It is endemic to New Zealand. This species has been observed in Aoraki / Mount Cook National Park and in the Southern Alps. The larvae of this species feed on the fruits and flowers of endemic to New Zealand species in the genus Gaultheria. Adult moths are on the wing in November and from January to March.

Taxonomy

This species was described by Alfred Philpott in 1930 using material he collected in February at Governors Bush, Aoraki / Mount Cook National Park and originally named Carposina canescens.[1] George Hudson discussed this species under that name in his 1939 book A supplement to the butterflies and moths of New Zealand.[2] In 1978 Elwood Zimmerman argued that the genus Heterocrassa should not be a synonym of Carposina as the genitalia of the species in this genus are distinctive.[3] Subsequently John S. Dugdale placed this species within the genus Heterocrossa.[4] [5] [6] The holotype specimen is held at the Canterbury Museum.

Description

Philpott described the species as follows:

Distribution

This species is endemic to New Zealand.[7] Other than the type locality, this species has been found in the Southern Alps at the junction of the Bealey and Waimakariri Rivers.

Biology and behaviour

The adult moths of this species are on the wing in November and January to March.[8]

Host species

The larvae of this species feed on the fruits and flowers of Gaultheria species.[9]

Notes and References

  1. Philpott. Alfred. Alfred Philpott. 1930. The Lepidoptera of Mount Cook, with descriptions of new species.. Transactions and Proceedings of the New Zealand Institute. 61. 419–439.
  2. Book: A supplement to the butterflies and moths of New Zealand.. Hudson. G. V.. 1939. Ferguson & Osborn Ltd. Wellington. 455. 221041540. George Hudson (entomologist). 9 June 2018.
  3. Book: Zimmerman, Elwood. Insects of Hawaii.. University of Hawaii Press.. 1978. 9780824804879. 9. Hawaii. 797. 10125/7338.
  4. Dugdale. J. S.. 1988. Lepidoptera - annotated catalogue, and keys to family-group taxa. Fauna of New Zealand. 14. 131. 1 June 2018. 27 January 2019. https://web.archive.org/web/20190127012448/https://www.landcareresearch.co.nz/__data/assets/pdf_file/0017/26324/FNZ14Dugdale1988.pdf. dead.
  5. 457.
  6. Web site: Heterocrossa canescens (Philpott, 1930). 2018. www.nzinverts.landcareresearch.co.nz. 9 June 2018.
  7. Web site: Heterocrossa canescens (Philpott, 1930) . www.nzor.org.nz . Landcare Research New Zealand Ltd . 9 June 2018.
  8. White. E. G.. 1991. The changing abundance of Moths in a Tussock grassland, 1962–1989, and 50- TO 70-YEAR trends.. New Zealand Journal of Ecology. 5–22.
  9. Web site: PlantSynz – Invertebrate herbivore biodiversity assessment tool: Database. plant-synz.landcareresearch.co.nz. 9 June 2018.

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