Ichneutica chlorodonta

Last updated

Ichneutica chlorodonta
Graphania chlorodonta female.jpg
Female
Graphania chlorodonta male.jpg
Male
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Ichneutica
Species:
I. chlorodonta
Binomial name
Ichneutica chlorodonta
(Hampson, 1911)
Synonyms [1]
  • Morrisonia chlorodontaHampson, 1911
  • Melanchra chlorodonta(Hampson, 1911)
  • Graphania chlorodonta(Hampson, 1911)

Ichneutica chlorodonta, also known as the Green-toothed Owlet, is a moth of the family Noctuidae. [2] This species is endemic to New Zealand. It is found throughout the North, South and Stewart Islands and is associated with native forest and shrubland. It can be confused with similar looking species such as I. subcyprea however I. chlorodonta can be distinguished through differences in colouration of its fore and hind wings as well as the length of the male pectinations. The life history of this species is unknown as are the host species of its larvae but adults of I. chlorodonta are on the wing from September to April.

Contents

Taxonomy

I. chlorodonta was first described by George Hampson in 1911. [3] The holotype specimen used by Hampson was collected in Ngāruawāhia by George Blundell Longstaff and is held by the Natural History Museum, London. [1] In 1988 J. S. Dugdale, in his catalogue on New Zealand lepidopera, placed this species within the Graphania genus. [4] In 2019 Robert Hoare undertook a major review of New Zealand Noctuidae species. [1] During this review the genus Ichneutica was greatly expanded and the genus Graphania was subsumed into that genus as a synonym. [1] As a result of this review, this species is now known as Ichneutica chlorodonta. [1]

Description

Ichneutica chlorodonta, the green-suffused form Ichneutica chlorodonta (cropped).jpg
Ichneutica chlorodonta, the green-suffused form

Hampson first described this species as follows:

♀. Head and thorax bright rufous mixed with purple-grey especially on patagia, the tegulae with black line near tips ; abdomen rufous. Fore wing bright rufous mixed with purple-grey and some olive-green ; subbasal line double, black filled in with purple, dentate, bent inwards to base at vein 1, an oblique white striga beyond it across the cell and an olive-green patch above vein 1 ; antemedial line black defined on inner side by purple, slightly angled outwards below costa and excurved below the cell ; claviform large, defined by black and white above and at extremity ; orbicular and reniform large, with brown and green centres and white annuli defined by black, the former rather oblique elliptical, the latter with curved whitish striga in centre ; postmedial line black defined on outer side by purple, double at costa, bent outwards below costa, then minutely dentate, incurved below vein 3, some whitish points beyond it on costa ; sub-terminal line white with olive-green suffusion before it except towards costa and inner margin and defined on outer side by black, incurved below costa, angled outwards at vein 7 and dentate to termen at veins 4 and 3 ; a fine waved black terminal line. Hind wing red-brown with a fine pale line at base of cilia ; the underside whitish thickly irrorated with red-brown, a dark discoidal spot and obliquely curved postmedial line. Ab. 1. Head and thorax olive-green mixed with purple-grey ; abdomen brown mixed with whitish ; fore wing purple-grey mixed with olive-green and without rufous ; hind wing paler. [3]

This species is very variable in the marking colouration on its forewings. [1]

There are some species that resemble I. chlorodonta such as I. subcyprea as well as a Westland form, called by Robert Hoare in his 2019 publication, I. skelloni s.l. [1] I. chlorodonta differs from I. subcyprea as the male of the species has slightly longer pectinations, it has a distinctive lilac-grey to lead grey colour to the antemedian and postmedian lines, green scaling between antemedian and postmedian lines, much darker brown hindwings, and has a paler underside of the hindwings. [1]

The male I. chlorodonta has a wing span of between 31 and 36 mm and the female has a wingspan of between 27 and 34 mm. [1]

Distribution

This species is endemic to New Zealand. [5] This species is found throughout the North, South and Stewart Islands of New Zealand. [1]

Habitat

I. chlorodonta inhabits native forest and shrubland. [1]

Behaviour

The adults of this species are on the wing from September to April. [1]

Life history and hosts

The life history of this species is unknown as are the host species of its larvae. [1]

Related Research Articles

<i>Ichneutica</i> Genus of moths, endemic to New Zealand

Ichneutica is a genus of cutworm or dart moths in the family Noctuidae. The genus is found in New Zealand and surrounding islands. There are more than 80 described species in Ichneutica, the largest known genus of Lepidoptera in New Zealand. In 2019 this genus was revised and greatly expanded with the genera Graphania Hampson, 1905, Tmetolophota Hampson, 1905 and Dipaustica Meyrick, 1912 all subsumed within it.

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

Ichneutica ustistriga is a moth of the family Noctuidae. It is endemic to New Zealand and can be found from the Three Kings Islands to Stewart Island. This species lives in a wide variety of habitats including domestic gardens, horticultural areas, orchards, native and exotic grasslands, as well as native forest. The larvae eat a variety of herbaceous plants. Recorded food plants include Muehlenbeckia australis, Muehlenbeckia complexa, Olearia hectorii, and Plantago lanceolata. This moth has a mauvish grey wing colour and is unlikely to be confused with other species as the patterns on its forewing are distinctive. This species is on the wing throughout the year and is attracted to both sugar and light traps. Adult moths can be found at rest on fences and tree trunks during the day.

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

Ichneutica morosa is a moth of the family Noctuidae. It is endemic to New Zealand and is found in the southern parts of the North Island and throughout the South Island. I. morosa is common in the eastern parts of both those islands and also in Fiordland. I. morosa can be found from altitudes ranging from lowlands to the alpine zone. I. morosa is absent from the range of its closely related species I. mustulenta, that is from the northern North Island. The larvae of I. morosa are known to feed on Poa astonii and also on other Poa species including introduced species. As well as its standard form the adult moths have a grey colour morph with the head and thorax being a grey and mottled brown, and the forewing being a pale greyish ochreous to a deep brown, suffused with grey. I. morosa can be confused with I. mustulenta and I. lignana. Adults are on the wing from November to April.

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

Ichneutica omoplaca is a moth of the family Noctuidae. It is endemic to New Zealand. It is widespread from the Bay of Plenty in the North Island down to Southland in the South Island. Specimens have also been collected from the Auckland Islands. It lives in a variety of habitats including beech forest clearings and tussock grasslands. This species has been recorded that some of the larval hosts of this species include Poa cita, Dactylis glomerata and it has been reared on Plantago lanceolata. The larva is undescribed but pupae have been found in a pine plantation in soil under weeds. Adults of this species are on the wing from October to March. The adult moths are variable in appearance but the diagnostic feature is the pale ochreous to white colouring between the basal streak and the costa which contrasts with the ground colour of the forewing.

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

Ichneutica pelanodes is a moth of the family Noctuidae. It is endemic to New Zealand and has been found in scattered locations in the North, South and Stewart Islands. I. pelanodes is easily confused with I. skelloni as the two species are visually extremely similar. In the North Island though the range of the two species appears not to overlap. Generally of the two species I. pelanodes tends to be darker in appearance. I. pelanodes inhabits wetlands but the life history of this species is unknown as are the host species of its larvae. Adults are on the wing from October to February and are attracted both to sugar and light traps.

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

Ichneutica petrograpta is a moth of the family Noctuidae. This species is endemic to New Zealand where it is found in the southwest districts of the South Island, including Westland, Otago Lakes and Fiordland. It is very similar in appearance to I. mutans. It inhabits tussock and shrubland in the alpine to subalpine zones. Adults of I. petrograpta are on the wing from December to February and are attracted to sugar traps. The life history of this species is unknown as are the host species of its larvae.

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

Ichneutica oliveri is a moth of the family Noctuidae. It is endemic to New Zealand, found only in the South Island. However it has not been observed on the eastern side of that island from mid-Canterbury southwards to Southland. This species is distinctive and is unlikely to be confused with other closely related species. It inhabits tussock grasslands, shrubland as well as granite sand plains, all in the alpine zone. Adults are on the wing from December to March and are attracted to light. They have been observed feeding on the flowers of Hebe species. The life history of this species is unknown as are the larval hosts.

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

Ichneutica scutata is a moth of the family Noctuidae. It is endemic to New Zealand. This species can be found in the southern parts of the North Island as well as the eastern parts of the South Island. It is similar in appearance to I. insignis and I. skelloni but can be distinguished as I. scutata is much paler in appearance. It is likely this species inhabits lowland tussock grasslands as well as coastal dunes although it is not common in inland tussock grasslands. The larvae feed on a variety of herbaceous plants such as Plantago and Convolvulus species, Plagianthus divaricatus. It pupates on soil near its host plants. The adults are on the wing from late March to July.

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

Ichneutica sericata is a moth of the family Noctuidae. It is endemic to New Zealand. This species is variable and difficult to distinguish from I. skelloni specimens. It is known from the southern part of the South Island and from Stewart Island. There has been one specimen collected in Taranaki but although Robert Hoare determined the species, he expressed reservations given the location of collection. I. sercata inhabits shrubland at altitudes of between 470 and 900m. 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 August at Stewart Island and in November and December in the South Island.

<i>Meterana tetrachroa</i> Species of moth

Meterana tetrachroa is a species of moth of the family Noctuidae. This species is endemic to New Zealand. It is classified as "Data Deficient" by the Department of Conservation.

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

Ichneutica micrastra is a moth of the family Noctuidae. It is endemic to New Zealand. This species has been found only in the North Island and has been collected in the Northland, Auckland, Whanganui and Wellington regions. The preferred habitat of this species is wetlands and heathlands including gum fields in Northland. Adults of this species are on the wing from October to December. The life history of this species is unknown as are the host species of its larvae however it has been hypothesised that the likely larval host is a grass or grass like plant. This species is very similar in appearance to I. phaula and I. sapiens but can be distinguished as a result of differences in male antennae, the shape, colour and size of forewings, the range of the species as well as differences in genital shape.

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

Ichneutica averilla is a moth of the family Noctuidae. It is endemic to New Zealand. This species is found in the North Island at Mount Taranaki but is widespread throughout the South Island and Stewart Island. It prefers mountainous habitat but can be found down to sea level in the southern parts of the South Island. Adults of the species are on the wing between November and March. Larvae likely exist on a variety of herbaceous plants but have been recorded as feeding on species within the genus Plantago. This species is sometimes confused with I. mutas but can be distinguished from the latter on the basis of forewing colour as well as the absence of or an indistinct antemedian forewing line.

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

Ichneutica agorastis is a moth of the family Noctuidae. This species is endemic to New Zealand. This moth is similar in appearance to two other species in the genus but can be distinguished through the colour and size of its forewings. This species is found in the South Island and Stewart Island in open habitats in the subalpine zone. However, in Southland I. agorastis can be found down to sea-level. Adult moths are on the wing between January and April. The life history and host species are unknown.

<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 and February. The life history of this species is unknown as is the host species of the larvae.

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

Ichneutica chryserythra is a moth of the family Noctuidae. Living specimens have distinctive violet red coloured forewings but can be distinguished from the similar species Ichneutica marmorata as it lacks the dark edge markings of the later species. I. chryserythra can only be found in the southern parts of the South Island. Adults are on the wing between November and January. The life history of the species and the host species of its larvae are unknown.

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

Ichneutica bromias is a moth of the family Noctuidae. This species is endemic to the Chatham Islands of New Zealand where is found on the Chatham, Pitt and Rangatira Islands. This species is similar in appearance to Ichneutica mutans but is darker and duller in its overall appearance. However, as I. mutans is not present in the Chathams this similarity is unlikely to cause confusion. The adults of the species are on the wing from November to March. The life history and the larval host species are unknown.

Ichneutica subcyprea is a moth of the family Noctuidae. This species is endemic to New Zealand. This species is very similar in appearance to I. chlorodonta. It feeds on fern species in the genus Tmesipteris. It is the only New Zealand noctuid known to exclusively feed on ferns. The preferred habitat of this species is humid native forest and the adults are on the wing from September to December.

<i>Ichneutica skelloni</i> Species of moth endemic to New Zealand

Ichneutica skelloni is a moth of the family Noctuidae. This species is endemic to New Zealand. Its presence has been confirmed in the North Island only in the Wellington region but is widespread throughout the South Island. It is also found in Stewart Island. I. skelloni is extremely variable in size, in the colour and patterns on the fore and hind wings, length of pectinations on male antennae and even in its genitalia. A larger more patterned form can be found in Westland and Fiordland, a medium-sized form is found from Wellington to Stewart Island and there is also a smaller Dunedin and Southland form. This species can be confused with specimens with the species I. insignis, I. scutata and I. pelanodes. I. skelloni can be found in forest and shrubland habitat. Adults are on the wing from July to April and are attracted to light. Host plants for the larvae are found in the genera Plantago, Senecio and Ranunculus and also include the species Bellis perennis.

Ichneutica sapiens is a moth of the family Noctuidae. This species is endemic to New Zealand. I. sapiens is found in the central North Island, in the South Island in Westland and also the southern parts of the South Island, and in Stewart Island. This species inhabits wetland habitat but its life history is unknown as are the host species of its larvae. The adult moths are on the wing between December and early January and are attracted to sugar traps and to light. I. sapiens is very similar in appearance to I. micrastra but is a smaller moth with a shorter wingspan, has differently formed antennae and slightly different forewing markings.

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

Ichneutica paracausta is a moth of the family Noctuidae. This species is endemic to New Zealand. It is found locally in the central North Island, is widespread in the South Island and can also be found in Stewart Island. I. paracausta is variable in colour, but as it has a distinctive black streak on its forewing as well as a wing pattern that is characteristic, I. paracausta is unlikely to be confused with other species. It is present on the North Island volcanic plateau as well as Little Bush Reserve in Hawkes Bay in the North Island as well as in tussock grassland, alpine and subalpine shrubland and in alpine forest. Larvae have been recorded as feeding on grasses, a pupa has been found in a cocoon under the bark of a tree and adult moths are on the wing from October to January.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 Hoare, Robert J. B. (9 December 2019). "Noctuinae (Insecta: Lepidoptera: Noctuidae) part 2: Nivetica, Ichneutica". Fauna of New Zealand. 80: 1–455. doi:10.7931/J2/FNZ.80.
  2. "Ichneutica chlorodonta (Hampson, 1911)". www.nzor.org.nz. Retrieved 2021-07-26.
  3. 1 2 Hampson, George Francis (1911). "Descriptions of new genera and species of Syntomidae, Arctiadae, Agaristidae, and Noctuidae". Annals and Magazine of Natural History. 8 (46): 393–445. doi:10.1080/00222931108693053 via Biodiversity Heritage Library.
  4. Dugdale, John Stewart (1988-09-23). "Lepidoptera - annotated catalogue, and keys to family-group taxa" (PDF). Fauna of New Zealand. 14: 1–264.
  5. "Ichneutica chlorodonta (Hampson, 1911)". nztcs.org.nz. 2021. Retrieved 2021-07-26.