Ipana griseata
| Ipana griseata | |
|---|---|
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| Female | |
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| Male | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Geometridae |
| Genus: | Ipana |
| Species: | I. griseata
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| Binomial name | |
| Ipana griseata | |
| Synonyms[2] | |
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Ipana griseata is a species of moth in the family Geometridae. It is endemic to New Zealand. This species is classified as "At Risk, Declining" by the Department of Conservation.
Taxonomy
[edit]Ipana griseata was first described and illustrated by George Vernon Hudson in 1898 as Declana griseata.[3] Hudson further discussed and illustrated the species both in his 1928 and 1939 publications.[4][5] The lectotype specimen is held at the Museum of New Zealand Te Papa Tongarewa.[6] In 2023, the species was moved to the genus Ipana.[2]
Description
[edit]Hudson gave a description and illustration of the larvae of this species in his 1939 publication.[5] In appearance the larvae are extremely variable but it is able to mimic the appearance of a twig on its host plant.[5]
The pupa are enclosed in a cocoon made of moss and plant detritus and can be found on the ground.[5]
Hudson described the adult moth as follows:
The expansion of the wings of the male is 1+1⁄8 inches, of the female 1+3⁄8 inches. The fore-wings are dull slaty-grey, with a slightly paler central band; there is a fine oblique wavy transverse line at about one-fourth, another at about one-half, and indications of a third at about three-fourths ; numerous minute black streaks are thickly scattered over the wing, especially near the base and the termen ; the outline of the termen is very slightly scalloped. The hind-wings are pale grey, darker near the termen. The body is very dark slaty-grey. The antenna of the male are not bi-pectinated.[3]
Distribution
[edit]Ipana griseata is endemic to New Zealand.[1][7] This species range is from the Bay of Plenty/Taupo to Southland.[8] However it is likely locally extinct in some North Island localities.[8][9] Ipana griseata has been recorded as being collected in Wellington,[3] Top house at Lake Rotoiti,[5] Mount Hutt,[5] Castle Hill,[5] Cave Creek in Paparoa National Park,[5] Arthurs Pass,[5] Waiho Gorge in Westland,[4] Dunedin,[4] Ben Lomond,[5] Lake Wakatipu,[3] Takitimu Mountains in Southland,[5] Invercargill[4] and Orepuki.[4]
Biology and behaviour
[edit]The larvae of Ipana griseata are present in December and January.[5] The adult moths emerge from February.[5] This species can be found on the wing from September until May and is attracted to light.[4] Adults rest on mossy tree trunks in the vicinity of their host plants.[10]
Host species
[edit]The host species of this moth are leafy mistletoes,[8] including Peraxilla colensoi.[5]
Conservation status
[edit]This moth is classified under the New Zealand Threat Classification system as being "At Risk, Declining".[11] It was regarded by Hudson as being a scarce species even when first described.[3] The survival of this moth is dependent on the survival of its host plants.[8]
References
[edit]- ^ a b "Declana griseata Hudson, 1898". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 9 May 2018.
- ^ a b Dugdale, J. S.; Emmerson, A. W.; Hoare, R. J. B. (2023). "Declana and Ipana (Insecta: Lepidoptera: Geometridae: Ennominae)". Fauna of New Zealand. 82: 1–120. doi:10.7931/J2/FNZ.82. ISSN 0111-5383. Wikidata Q124100766.
- ^ a b c d e Hudson, G. V. (1898). New Zealand moths and butterflies (Macro-lepidoptera). London: West, Newman & Co. p. 98. doi:10.5962/bhl.title.7912.
- ^ a b c d e f Hudson, G. V. (1928). The Butterflies and Moths of New Zealand. Wellington: Ferguson & Osborn Ltd. p. 151.
- ^ a b c d e f g h i j k l m n Hudson, George Vernon (1939). A supplement to the butterflies and moths of New Zealand. Wellington: Ferguson & Osborn. p. 416. OCLC 9742724.
- ^ Dugdale, J. S. (1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa" (PDF). Fauna of New Zealand. 14: 164. Archived from the original (PDF) on 27 January 2019. Retrieved 9 May 2018.
- ^ Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity: Kingdom animalia: chaetognatha, ecdysozoa, ichnofossils. Vol. 2. p. 459. ISBN 978-1-877257-93-3. OCLC 973607714. OL 25288394M. Wikidata Q45922947.
- ^ a b c d Patrick, Brian; Dugdale, John S. (2000). Conservation status of the New Zealand lepidoptera (PDF). Wellington, N.Z.: Department of Conservation, New Zealand. ISBN 0478218672. OCLC 154670803.
- ^ Keesing, Vaughan (6 May 2012). "Ecological Review of the Terrestrial Ecological AEE Prepared for the Hawke's Bay Regional Council Ruataniwha Water Storage Project" (PDF). www.hbrc.govt.nz. Retrieved 9 May 2018.
- ^ Glime, J. M. (2017). "Terrestrial Insects: Holometabola – Lepidoptera: Geometroidea – Noctuoidea". www.digitalcommons.mtu.edu. Retrieved 9 May 2018.
- ^ 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). Wellington, New Zealand: New Zealand Department of Conservation. p. 7. ISBN 9781988514383.
External links
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