Ctenarchis

Ctenarchis is a genus of moths of the Carposinidae family, containing only one species, Ctenarchis cramboides. This species is endemic to New Zealand. It is classified as "At Risk, Naturally Uncommon" by the Department of Conservation.

Ctenarchis
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Carposinidae
Genus:
Ctenarchis

Dugdale, 1995
Species:
C. cramboides
Binomial name
Ctenarchis cramboides
Dugdale, 1995[1]

Taxonomy

C. cramboides was first described by John S. Dugdale in 1995 using material collected by C. J. Green and himself at Spraggs Bush in the Waitākere Ranges on 9 March 1984.[2] The holotype specimen is held at the New Zealand Arthropod Collection.[2]

Etymology

The name Ctenarchis refers to the pectinate (comblike) antenna (kteinos is Greek for a comb and -"archis", a conventional carposinid suffix).[2]

Description

The wingspan is 35–40 mm for males and about 50 mm for females. The forewings are creamy white, with small sparse costal and subterminal maculations (spots) in brown, and two short longitudinal streaks, one basally on the costa. The head, thorax and abdomen are creamy white and the labial palpi are dark brown laterally. The hindwings are grey-buff, although darker brown-grey in females.[2]

Distribution

This species is endemic to New Zealand.[3][4] It is only known from Auckland and Northland.[5] Most specimens have been collected in Titirangi.[2]

Biology and behaviour

Adult specimens have been collected from December to March and in July and July using either light or malaise traps.[2] At rest, the species holds its wings mostly around the body though partly overlapping.[2]

Host plants and habitat

The host plants for the larvae of this species is unknown.[5]

Conservation Status

C. cramboides has been classified as having the "At Risk, Naturally Uncommon" conservation status under the New Zealand Threat Classification System.[6]

References
  1. "Lepidoptera of New Zealand". Landcareresearch.co.nz. Archived from the original on 2010-05-18. Retrieved 2011-12-19.
  2. Dugdale, J. S. (January 1995). "A new genus and species of New Zealand Carposinidae (Lepidoptera)". New Zealand Journal of Zoology. 22 (2): 213–216. doi:10.1080/03014223.1995.9518036.
  3. "Ctenarchis cramboides Dugdale, 1995". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 2017-01-20.
  4. 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. 457. ISBN 9781877257933. OCLC 973607714.
  5. Patrick, B. H.; Dugdale., J. S. (2000). Conservation status of the New Zealand Lepidoptera (PDF). Science for Conservation. 136. p. 21. ISBN 978-0478218671. ISSN 1173-2946. Archived from the original (PDF) on 2017-05-01. Retrieved 2018-05-21 – via Department of Conservation.
  6. 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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