Austramathes coelacantha

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Austramathes coelacantha
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Erebidae
Genus: Austramathes
Species:
A. coelacantha
Binomial name
Austramathes coelacantha
Hoare, 2017

Austramathes coelacantha is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found in the central and east of the South Island. It lives in shrubland in inland areas as well as in Southern beech forest at subalpine altitudes. The life history of this species is unknown as are the host species of its larvae. However the larval host-plants may be species within the genus of Melicytus . Adult moths are on the wing during the months of January to March. They are attracted to light and appear to be active later in the evening, and not at twilight.

Contents

Taxonomy

This species was first described by Robert J. B. Hoare in 2017. [1] The male holotype specimen was collected by Troy Watson at Mitchells Cutting in the Upper Clarence Valley in Marlborough. [2] This specimen is held at the New Zealand Arthropod Collection. [2]

Description

The adult male moth has a wingspan of between 24 and 27 mm where as the female moth has a wingspan of between 28 and 30 mm. [2] Hoare states it can be easily distinguished from other species in the genus Austramathes as a result of its "greyish ground-colour, lack of hook-shaped mark from the base of the forewing costa, the large, closely approximated orbicular and reniform stigmata, and the black thorn-like mark from the costa between these." [2]

Distribution

This species is endemic to New Zealand and it inhabits the central and eastern parts of the South Island. [2] [3]

Habitat

This species lives in shrubland in inland areas as well as in Southern beech forest at subalpine altitudes. [2]

Behaviour

Adult moths are on the wing during the months of January to March. [2] They are attracted to light and appear to be active later in the evening, and not at twilight. [2]

Host-plant

Possible larval host plant, Melicytus alpinus Melicytus aff. alpinus (Kirk) Garn.-Jones (AM AK355765-5).jpg
Possible larval host plant, Melicytus alpinus

The life history of this species is unknown as are the host species of its larvae. [2] However Hoare hypothesizes that the host plants of the larvae of A. coelacantha are in the genus Melicytus . [2]

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<i>Ichneutica blenheimensis</i> Species of moth

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<i>Ichneutica paraxysta</i> Species of moth

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<i>Austramathes purpurea</i> Species of moth

Austramathes purpurea is a species of moth in the family Noctuidae. It is endemic to New Zealand and can be found throughout the North and South Islands but has yet to be recorded at Stewart Island. It inhabits native forest. This species might possibly be confused with A. pessota, however this latter species does not have the purple hue to the forewings. The larvae of A. purpurea feed primarily on māhoe but have been recorded as feeding on, and have been reared on, narrow-leaved māhoe. The larvae pupate in a silken cocoon on moss covered ground. Adults can be found on the wing during the months of March to January but mainly occur during New Zealand's late autumn, winter, and spring. Light trapping may not be the most efficient technique for collecting this species.

<i>Ichneutica cuneata</i> Species of moth

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<i>Austramathes fortis</i> Species of moth

Austramathes fortis is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found in both the North and the South Islands but has yet to be recorded at Stewart Island. It can be found in shrubland containing its host species at a range of altitudes from sea-level up to 1840 m. The larvae of this moth feed on several Melicytus species including M. crassifolius, M. alpinus, M. macrophyllus and M. novae-zelandiae. The larvae pupate in a cocoon of silk at the base of its host plant. It can take between 25 and 45 days before the adult moth emerges. Adults can be found on the wing during the months of July to March. The adults tend to be on the wing in twilight hours but have also been known to be active during the late afternoon. They are attracted to light but this behaviour may limit the number seen at light traps. The distinguishing feature of this moth is the curved black line at the base of its forewing. This species is unlikely to be confused with any other species in its range but it is very similar in appearance to A. squaliolus. However this latter species is only found on the Chatham Islands.

<i>Austramathes pessota</i> Species of moth endemic to New Zealand

Austramathes pessota is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found in Northland, in the southern North Island and in the South Island, mainly on the eastern side of that island but is also present in Fiordland. It is not regarded as being present in either Dunedin or the Southland district. This species lives in shrubland at altitudes ranging from sea-level up to subalpine. As at 2017, the larvae have yet to be described or photographed but it is known that they feed on Melicytus alpinus and it is likely that Melicytus micranthus is also a host. Adults of this species are distinctively patterned and coloured. Its appearance differs from its close relatives such as A. purpurea as it lacks the purple hue that can be seen on the latter species forewings. It also differs from A. coelacantha as it is much darker and has a distinctive small, round, pale mark on its forewing. Adults are on the wing from December to April.

Austramathes squaliolus is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found only in the Chatham Islands on the Chatham, Pitt, Little Mangere and Rangatira Islands. The larvae of A. squaliolus is similarly patterned to the larvae of A. fortis and have lateral yellow markings that contrast with the dark dorsal marbling. However this marbling is darker in A. squaliolus in comparison to the lighter coloured A. fortis. Melicytus chathamicus is the larval host-plant for this species. The adult moth is again very similar in appearance to A. fortis and, as with A. fortis, the black line curved at the forewing base is the distinguishing feature. However the two species are unlikely to be confused as their ranges do not overlap. The adult moths are on the wing in November and December and have been observed flying at dusk.

<i>Ichneutica panda</i> Species of moth

Ichneutica panda is a species of moth in the family Noctuidae. It is endemic to New Zealand and only found in central and southern parts of the South Island. The species has not been collected in Canterbury since the late 1950s and has not been seen at The Wilderness scientific reserve since 1941. This species is similar in appearance to Ichneutica falsidica however I. panda lack or have indistinct black dashes on their edge of their hindwings. I. panda inhabit shrubland from alpine zones down to river terraces and adults are on the wing between December to February. The life history of this species is unknown as is the host species of the larvae.

<i>Ichneutica marmorata</i> Species of moth

Ichneutica marmorata is a moth of the family Noctuidae. This species is endemic to New Zealand can can be found in the North Island at the Tongariro National Park and at Puketitiri near the Kaweka Range. In the South Island it is widespread. It prefers alpine to subalpine habitat but occurs down to sea level altitudes in more southern locations. Adults are on the wing from late October to February. Larvae of this species may use tussock grasses in the genus Chionochloa as their host and they have been reared on Festuca novae-zelandiae.

Ichneutica haedifrontella is a moth of the family Noctuidae. This species is endemic to New Zealand. It is only known from scattered areas in the North and South Islands. In the North Island it has only been collected in the Pouakai Range in Taranaki. In the South Island it is known from the Nelson, Buller, North Canterbury, Otago Lakes and Fiordland regions. It inhabits alpine to subalpine zones. The life history of this species is unknown as are the host species of its larvae in the wild. Larvae have been reared on species in the Chionochloa genus. Adults are on the wing from December to February and are attracted to light. This species has a smaller dwarf form that can be found in the Pouakai Range and at Dart Hut.

Ichneutica supersulcana is a moth of the family Noctuidae. This species is endemic to New Zealand and is only known from the Tararua Ranges and at Tongariro National Park. This species has been collected in subalpine tussock grasslands as well as subalpine shrubland and at the margins of Fuscospora cliffortioides forest. The life history of this species is unknown as are the host species of its larvae. The adults of this species are on the wing in February and are attracted to light. It appears to be restricted to higher altitudes in comparison to its close relative I. sulcana.I. sulcana and I. supersulcana are very similar in appearance with no reliable visible differences between the two having been discovered. However, there are distinct differences in the male abdomen and genitalia of these two species.

References

  1. "Austramathes coelacantha Hoare, 2017". www.gbif.org. Retrieved 26 April 2018.
  2. 1 2 3 4 5 6 7 8 9 10 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.
  3. "Austramathes coelacantha Hoare, 2017". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 26 April 2018.