Austramathes fortis

Austramathes fortis is a species of moth in the family Noctuidae.[1][2] It was first described by Arthur Gardiner Butler in 1880 from a specimen collected in Marlborough.[3] It is endemic to New Zealand.

Austramathes fortis
Female
Male
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Austramathes
Species:
A. fortis
Binomial name
Austramathes fortis
(Butler, 1880)[1]
Synonyms
  • Toxocampa fortis Butler, 1880
  • Miselia iota Hudson, 1903
  • Homohadena fortis (Butler, 1880)

Description

The wingspan of the male A. fortis is 29 – 37 mm where as the wingspan of the female is 29 – 41 mm.[1] George Hudson described the species as follows:

The expansion of the wings is a little over 1 in. The fore wings are dull brownish-ochreous finely speckled with black; there is a conspicuous hook-shaped black mark close to the base, a sharp black mark on the costa at about 1/4, a clouded wavy line near the middle of the wing, darker on the costa, a sharp black mark on the costa just beyond this, followed by a wavy band of dark brownish-black, very much broader on the costa than on the dorsum, and bordered with a pale wavy line towards the termen. The hind wings are dark brownish- black. The cilia of the fore wings are brownish-ochreous, of the hind wings dark - grey. The head and thorax are brownish-ochreous, and the abdomen grey. There are two conspicuous black marks on the anterior portion of the thorax.[4]

Distribution

A. fortis is found in both the North and the South Islands but has yet to be recorded at Stewart Island.[1] Adults can be found on the wing during the months of July to March.[1]

Host species

The larvae of this moth has been shown to feed on several Melicytus species including M. crassifolius, M. alpinus, M. macrophyllus and M. novae-zelandiae.[1]

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References

  1. Hoare, R.J.B. (2017). "Noctuinae (Insecta: Lepidoptera: Noctuidae) part 1: Austramathes, Cosmodes, Proteuxoa, Physetica" (PDF). Fauna of New Zealand. 73: 1–130. doi:10.7931/J2/FNZ.73 via Landcare Research New Zealand Ltd.
  2. "Austramathes fortis (Butler, 1880)". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 18 June 2018.
  3. Butler, A. G. (1880). "On a collection of Lepidoptera Heterocera from Marlborough Province, New Zealand". Cistula Entomologica. 2: 1880 via Biodiversity Heritage Library.
  4. Hudson, G. V. (1903). "On some New Species of Macro-lepidoptera". Transactions and Proceedings of the New Zealand Institute. 35. Retrieved 19 January 2018.


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