Pseudocoremia cineracia

Pseudocoremia cineracia is a species of moth in the family Geometridae. It is endemic to New Zealand. It is classified as Nationally Vulnerable by the Department of Conservation.

Pseudocoremia cineracia
Male
Female

Nationally Vulnerable (NZ TCS)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Hexapoda
Class:
Insecta
Order:
Lepidoptera
Family:
Geometridae
Tribe:
Boarmiini
Genus:
Pseudocoremia
Species:
P. cineracia
Binomial name
Pseudocoremia cineracia
(Howes, 1942)[2]
Synonyms[3]
  • Selidosema cineracia Howes, 1942

Taxonomy

This species was first described by George Howes in 1942 from specimens obtained at Moke Lake[4] and taken in January[5] and February.[4] Howes named it Selidosema cineracia. This name was also used when the species was discussed by George Vernon Hudson in 1950.[6] In 1988 John S. Dugdale assigned the species to the genus Pseudocoremia.[3] This classification of the species into Pseudocoremia is regarded as unsatisfactory.[2] As such the species is also currently known as Pseudocoremia (s.l.) cineracia.[2] The hototype specimen is held at the Museum of New Zealand Te Papa Tongarewa.[5]

Description

The larvae are coloured grey.[7]

Howes described the adult male of the species as follows:

Wing expanse, 30 mm. Head and thorax ash-grey. Antennae grey-brown. Abdomen ochreous. Forewings pale brownish- ochreous-brown. Strongly arched at base, then almost straight to apex. Termen slightly bent inwards from centre to tornus. Basal line faintly indicated by a short dark line below centre of wing, with a dark streak below centre outwardly angled towards dorsum. Claviform shows as a slight dot with a surrounding darker suffusion. Reniform faintly shown clouded with dark brown with a small dark dot in centre. Submarginal very slightly pale - the terminal line indistinct, with a terminal series of small dark dots. Cilia ochreous - very short. Veins faintly indicated in grey. Lower wings pale ochreous without markings and with a definite incurving at about one-third along termen. Cilia light ochreous and very short. Underside evenly ochreous white, the hindwings a shade lighter. No appearance of lunule.[4]

Distribution

This species is endemic to New Zealand.[2][8] The species range of this moth is Mackenzie, Central Otago and Otago Lakes.[9] Other than its type locality, this species occurs at Stony Beach at Okains Bay,[10] Big Spur Creek & Cluden Stream at Cluden Station in Otago[11] and Kawarau Gorge.[7]

Biology and host species

The host species of this moth is Olearia odorata.[9] The species is attracted to sugar lures.[4] The adults are on the wing August until June with the species being more common in September.[7]

Habitat

P. cineracia inhabits montane shrublands at an altitude of between 150-850m.[7]

Conservation status

This species has been classified under the New Zealand Threat Classification system as being Nationally Vulnerable.[1] P. cineracia is classified as nationally vulnerable partially because of its reliance on its host plant which is suffering a decline as a result of habitat destruction.[7]

References
  1. 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.
  2. "Pseudocoremia cineracia (Howes, 1942)". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 7 May 2018.
  3. Dugdale, J. S. (1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa" (PDF). Fauna of New Zealand. 14: 96 – via Landcare Research New Zealand Ltd.
  4. Howes, George (1942). "Lepidoptera". Transactions and Proceedings of the Royal Society of New Zealand. 71: 277–278.
  5. "Pseudocoremia cineracia (Howes, 1942)". collections.tepapa.govt.nz. Retrieved 2018-05-07.
  6. Hudson, G. V. (1950). Fragments of New Zealand entomology. - a popular account of all New Zealand cicadas. The natural history of the New Zealand glow-worm. A second supplement to the butterflies and moths of New Zealand and notes on many other native insects. Wellington: Ferguson & Osborne Ltd. p. 92. Retrieved 7 May 2018.
  7. Pawson, SM; Emberson, RM (2000). "Appendix A". The conservation status of invertebrates in Canterbury. Wellington: Department of Conservation. p. 49. hdl:10182/1658. ISSN 1171-9834.
  8. Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity. Volume two. Kingdom animalia : chaetognatha, ecdysozoa, ichnofossils. Vol. 2. Christchurch, N.Z.: Canterbury University Press. p. 459. ISBN 9781877257933. OCLC 973607714.
  9. Patrick, Brian; Dugdale, John S. (2000). Conservation status of the New Zealand Lepidoptera (PDF). Wellington, New Zealand: Department of Conservation. p. 28. ISBN 0478218672.
  10. Hogan, Debbie (6 June 2015). "Christchurch District Plan. Site of Ecological Significance. Stony Beach" (PDF). www.districtplan.ccc.govt.nz. Retrieved 7 May 2017.
  11. "Crown Pastoral Land Tenure Review. Cluden Station. Conservation Resources Report - Part 1" (PDF). www.linz.govt.nz. 2005. Retrieved 7 May 2018.
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