Pasiphila muscosata

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Pasiphila muscosata
Pasiphila muscosata female.jpg
Female
Pasiphila muscosata male.jpg
Male
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Geometridae
Genus: Pasiphila
Species:
P. muscosata
Binomial name
Pasiphila muscosata
(Walker, 1862) [1]
Synonyms [2]
  • Eupithecia muscosataWalker, 1862
  • Eupithecia cidariariaGuenée, 1868
  • Cidaria aquosataFelder & Rogenhofer, 1875
  • Chloroclystis muscosata(Walker, 1862)

Pasiphila muscosata, the emerald pug moth, is a moth in the family Geometridae. It is endemic to New Zealand and has been found in the North, South and Stewart Islands. The larvae of this species are known to be present in January and live on Muehlenbeckia species including Muehlenbeckia australis. The larvae tends to be brown but it is variable in both colour and markings. The larvae of this species pupates in a loose cocoon on the ground and adult moths emerge in September. Adults are commonly on the wing until the following May. Although adults tend to be a deep emerald green colour this species is again variable and there is also an orange-yellow variety as well as intermediate forms. Adults are attracted to light and often rest during the day on tree trunks.

Contents

Taxonomy

Male holotype specimen Pasiphila muscosata holotype.jpg
Male holotype specimen

This species was first described by Francis Walker in 1862 and named Eupithecia muscosata. [3] Walker used a specimen collected by T. R. Oxley in Nelson. [3] [2] In 1868 Achille Guenée, thinking he was describing a new species, named this species Eupithecia cidariaria. [4] In 1875 Cajetan von Felder and Alois Friedrich Rogenhofer, also thinking they were describing a new species, named this moth Cidaria aquossata. [5] In 1888 Edward Meyrick placed this species in the genus Pasiphila and synonymised the names Eupithecia cidariaria and Cidaria aquosata. [6] In 1898 George Hudson discussed this species as a synonym of Chloroclystis bilineolata. [7] [2] In 1928 Hudson again discussed as well as illustrated this species under the name Chloroclystis muscosata. [8] In 1971 John S. Dugdale placed this species again in the genus Pasiphila. [9] In 1988 John S. Dugdale discussed this species under the name Pasiphila muscosata and in 2010 Robert Hoare in the New Zealand Inventory of Biodiversity followed this placement. [2] [10] The male holotype specimen is held at the Natural History Museum, London. [2]

Description

Variety of P. muscosata Pasiphila muscosata 66432359.jpg
Variety of P. muscosata

Walker originally described the adult male of this species as follows:

Male. Grass-green. Palpi porrect, shorter than the breadth of the head. Antennae slightly pectinated. Wings rather broad, with several denticulated blackish lines, which are most distinct and regular in the hind wings and are most conspicuous on the veins; submarginal line pale cinereous, zigzag; marginal line black, slender; fringe with black points. Fore wings hardly acute, with two indistinct paler bands, which are remote from each other; a black cloud between the second band and the submarginal line; exterior border convex, moderately oblique. Hind wings reddish cinereous. Length of the body 4 lines; of the wings 12 lines. [3]

This species is variable in appearance with Hudson describing a variety of this moth which has a ground colour of orange-yellow. [8] He also stated that intermediate forms could be found but that these were much rarer than the more typical green form or the orange-yellow variety. [8]

P. muscosata larva. Fig 44 MA I437600 TePapa Plate-I-The-butterflies full (cropped).jpg
P. muscosata larva.

Hudson described the larva of this species as follows:

about 3⁄8 inch in length, considerably attenuated towards the head, with the segments strongly indented and the surface much wrinkled; its general colour is brown, or purplish-brown, with rich dark brown markings; there are humps on segments 6, 7, 8, 9 and 10, the largest on segment 8, each being much accentuated by a dark brown border; both extremities of the larva are clouded with dark brown, and there is a series of dark brown, or dark greenish-brown diagonal stripes. [8]

The larvae of this species, similar to the adults, is also variable in colour and markings. [8] Hudson hypothesised that the appearance of the larvae imitates the dried flowers of its host plants. [8]

Distribution

This species is endemic to New Zealand and can be found in the North, South and Stewart Islands. [1] [8]

Life cycle and behaviour

Camouflaged Pasiphila muscosata. Pasiphila muscosata 1187528.jpg
Camouflaged Pasiphila muscosata.

From late December to mid January adults lay their oval, flattened eggs, usually singly, on the leaves of their host species. [11] These eggs hatch after about fifteen days. [11] They turn a dark colour in the last few days of maturing. [11] The larvae of this species tend to be present in January. [8] They are known to rest with their body held in a twisted shape and when walking have been observed to sway from side to side. [8] This species pupates in a loose cocoon on the ground. [8] There appears to be only one brood per year for this species. [11] The adults of this species are on the wing all year round but more commonly from September until May. [12] They are attracted to light. [8] They have been observed resting during the day on tree trunks where their appearance resembles moss making the species extremely difficult to find. [8]

Habitat and hosts

Larval host Muehlenbeckia australis Muehlenbeckia australis (G.Forst.) Meisn. (AM AK359802-2).jpg
Larval host Muehlenbeckia australis

Larvae of this species live on species in the genus Muehlenbeckia as well as on Lophomyrtus bullata . [7] They have been successfully reared in captivity on Muehlenbeckia australis . [13] [14]

Related Research Articles

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<i>Pasiphila bilineolata</i> Species of moth

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References

  1. 1 2 "Pasiphila muscosata (Walker, 1862)". www.nzor.org.nz. Retrieved 2022-05-11.
  2. 1 2 3 4 5 John Stewart Dugdale (23 September 1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa". Fauna of New Zealand. Department of Scientific and Industrial Research. 14: 188. doi:10.7931/J2/FNZ.14. ISSN   0111-5383. Wikidata   Q45083134.
  3. 1 2 3 Francis Walker (1862), List of the Specimens of Lepidopterous Insects in the Collection of the British Museum, XXIV: Geometrites (continued), vol. 24, p. 1246, Wikidata   Q109609883
  4. ↑ Achille Guenée (1868). "New species, &c., of heterocerous Lepidoptera from Canterbury, New Zealand, collected by Mr. R. W. Fereday". Entomologist's Monthly Magazine . 5: 62. ISSN   0013-8908. Wikidata   Q104214297.
  5. ↑ von Felder, Cajetan; Rogenhofer, Alois Friedrich (1875). Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Vol. 2. Wien. pp. Plate CXXXII Figure 38.{{cite book}}: CS1 maint: location missing publisher (link)
  6. ↑ Edward Meyrick (May 1888). "Notes on New Zealand Geometrina". Transactions and Proceedings of the New Zealand Institute. 20: 50. ISSN   1176-6158. Wikidata   Q108281219.
  7. 1 2 George Vernon Hudson (1898), New Zealand moths and butterflies (Macro-lepidoptera) , Illustrator: George Hudson, London, p. 41, doi:10.5962/BHL.TITLE.7912, OCLC   980865393, Wikidata   Q19073637 {{citation}}: CS1 maint: location missing publisher (link)
  8. 1 2 3 4 5 6 7 8 9 10 11 12 George Vernon Hudson (1928), The butterflies and moths of New Zealand, Illustrator: George Hudson, Wellington, p. 91, LCCN   88133764, OCLC   25449322, Wikidata   Q58593286 {{citation}}: CS1 maint: location missing publisher (link)
  9. ↑ J. S. Dugdale (10 November 1971). "Entomology of the Aucklands and other islands south of New Zealand: Lepidoptera, excluding non-crambine Pyralidae" (PDF). Pacific Insects Monographs . 27: 106. ISSN   0078-7515. Wikidata   Q64006453.
  10. ↑ Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity: Kingdom animalia : chaetognatha, ecdysozoa, ichnofossils. Vol. 2. p. 460. ISBN   978-1-877257-93-3. OCLC   973607714. OL   25288394M. Wikidata   Q45922947.
  11. 1 2 3 4 Gaskin, D. E. (1966). The butterflies and common moths of New Zealand. New Zealand: Whitcombe & Tombs Ltd. pp. 122–123. OCLC   499484698.
  12. ↑ "Emerald Pug Moth (Pasiphila muscosata)". iNaturalist. Retrieved 2022-05-11.
  13. ↑ Hamish J. H. Patrick; Mike H. Bowie; Barry W. Fox; Brian H. Patrick (2011). "The moths of Quail Island (Ōtamahua): a faunal comparison of an island under restoration with other sites on Banks Peninsula". New Zealand Natural Sciences. 36. doi:10.26021/583. ISSN   0113-7492. Wikidata   Q97665452.
  14. ↑ "Pasiphila muscosata (Walker, 1862)". plant-synz.landcareresearch.co.nz. Retrieved 2022-05-11.


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