Pyrgotis pyramidias

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Pyrgotis pyramidias
Pyrgotis pyramidias 119238391.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Tortricidae
Genus: Pyrgotis
Species:
P. pyramidias
Binomial name
Pyrgotis pyramidias
Meyrick, 1901 [1]

Pyrgotis pyramidias is a species of moth in the family Tortricidae. It is endemic to New Zealand. It is classified as "At Risk, Naturally Uncommon" by the Department of Conservation. This species is regarded as having two 'forms' although doubt has been expressed whether these are the same species.

Contents

Taxonomy

P. pyramidias was first described by Edward Meyrick in 1901 from a specimen collected by Alfred Philpott in Invercargill. [2] George Hudson described and illustrated this species in his 1928 book The Butterflies and Moths of New Zealand. [3] The holotype specimen is held at the Natural History Museum, London. [4] The holotype represents P. pyramidias sensu stricto. [4] [5]

Description

Illustration of P. pyramidias by George Hudson. Fig 12 MA I437623 TePapa Plate-XXIV-The-butterflies full (cropped).jpg
Illustration of P. pyramidias by George Hudson.

Meyrick originally described the species as follows:

♂︎. 16 m.m. Head orange. Palpi ochreous mixed with dark fuscous. Thorax orange-ochreous. Forewings rather elongate-triangnlar, costa moderately arched, apex round-pointed, prominent, termen oblique, rather sharply concave on upper half, prominent in middle ; reddish-ochreous, sprinkled with dark crimson, suffusedly irrorated with whitish except towards base and dorsal spot ; a sharp white triangular dorsal spot before middle, reaching nearly half across wing, anterior side shortest, enclosing two dark reddish-fuscous dorsal dots : cilia reddish-ochreous, with dark reddish median line, basal half whitish-mixed. Hindwings whitish-grey, becoming whitish towards costa, greyer terminally ; cilia whitish, with grey basal line. [2]

The holotype specimen described above is typical of the species from the type locality in that it has a drab appearance and is smaller than the form of the species existing in silver beech forest. [4] [6] The adults of this latter form are more brightly coloured and patterned. [4] [6] Doubt has been expressed whether this larger, more colourful form is the same species as the smaller, more drab form of this moth. [4] [6]

Distribution

This species is endemic to New Zealand. [1] [7] It is found from the Bay of Plenty to Southland. [6] The type locality is around Awarua Bog and Tiwai Point [4] and this is where the smaller, more drab form of the species lives. [6] This form has also been found at Whakarewarewa in Rotorua. [5] The more colourful and patterned form of this species is found in the above stated range where its host plant is present. [3]

Biology and life cycle

This species is on the wing between October and February. [3]

Host plants and habitat

Host plant Leucopogon fasciculatus Leucopogon fasciculatus in Auckland Botanic Gardens.jpg
Host plant Leucopogon fasciculatus

The host plant of the larvae of P. pyramidia in the type locality and the above-mentioned population in Rotorua is Leucopogon fasciculatus . [5] The larger, more colourful and patterned form of this species has larvae that feed on Lophozonia menziesii . This host plant is absent from Invercargill and its surrounding area. [6]

Conservation status

P. pyramidia s.s. has been classified as having the "At Risk, Naturally Uncommon" conservation status under the New Zealand Threat Classification System. [8]

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References

  1. 1 2 "Pyrgotis pyramidias Meyrick, 1901". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 2017-01-15.
  2. 1 2 Meyrick, Edward (1901). "XVII. Descriptions of New Lepidoptera from New Zealand". Transactions of the Entomological Society of London. 49 (4): 571. doi:10.1111/j.1365-2311.1901.tb01373.x – via Biodiversity Heritage Library.
  3. 1 2 3 Hudson, G. V. (1928). The Butterflies and Moths of New Zealand. Wellington: Ferguson & Osborn Ltd. p. 219.
  4. 1 2 3 4 5 6 Dugdale, J. S. (1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa" (PDF). Fauna of New Zealand. 14: 127. Archived from the original (PDF) on 2019-07-22. Retrieved 2018-05-25– via Landcare Research New Zealand Ltd.
  5. 1 2 3 Pawson, Stephen M.; Emberson, Rowan M. "The conservation status of invertebrates in Canterbury" (PDF). www.dspace.lincoln.ac.nz. Lincoln University. Retrieved 16 January 2017.
  6. 1 2 3 4 5 6 Patrick, Brian; Dugdale, John S. (2000). Conservation status of the New Zealand Lepidoptera (PDF). Wellington, New Zealand: Department of Conservation. p. 28. ISBN   0478218672.
  7. ↑ Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity: Kingdom animalia : chaetognatha, ecdysozoa, ichnofossils. Vol. 2. p. 465. ISBN   978-1-877257-93-3. OCLC   973607714. OL   25288394M. Wikidata   Q45922947.
  8. ↑ Hoare, R.J.B.; Dugdale, J.S.; Edwards, E.D.; Gibbs, G.W.; Patrick, B.H.; Hitchmough, R.A.; Rolfe, J.R. (2017). "Conservation status of New Zealand butterflies and moths (Lepidoptera), 2015" (PDF). New Zealand Threat Classification Series. 20: 8.
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