Ichneutica sulcana

Ichneutica sulcana
	Female
	Male
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Noctuidae
Genus:	Ichneutica
Species:	I. sulcana
Binomial name
	Ichneutica sulcana; (Fereday, 1880)
Synonyms
	Leucania sulcanaFereday, 1880 ; Tmetolophota sulcana(Fereday 1880) ;

Last updated November 23, 2023

Ichneutica sulcana, the dark underwing wainscot, is a moth of the family Noctuidae.^[1] It is endemic to New Zealand and can be found throughout the North, South and Stewart Islands at a range of altitudes from the lowlands to the alpine zone. This species prefers to live in native grass, shrub and wetland habitats as well as in native forest. The larval host plants of this species are forest grasses and sedges and larvae have been reared on Microlaena avenacea and species within the genus Carex . The larva pupates in the soil. Adults are on the wing from December to May but have also been recorded in August and September in the northern parts of the North Island. They are attracted to sugar traps as well as to light. I. sulcana and I. supersulcana are very similar in appearance but can be distinguished as there are differences in the male abdomen and genitalia of the two species. Also these two species do not appear to share a range as I. supersulcana seems to prefer to live at higher altitudes than I. sulcana. I. sulcana might also be confused with I. semivittata but I. sulcana is a larger species with a much darker abdomen and hindwing, and has only 1 to 3 dots on the forewing postmedian line.

Taxonomy

This species was described by Richard William Fereday in 1880 and originally named Leucania sulcana.^[2] The female lectotype was collected Rowe's Bush in Akaroa by Fereday and is held at the Canterbury Museum.^[3] In 1988 J. S. Dugdale placed this species within the Tmetolophota genus.^[3] In 2019 Robert Hoare undertook a major review of New Zealand Noctuidae. During this review the genus Ichneutica was greatly expanded and the genus Tmetolophota was subsumed into that genus as a synonym. As a result of this review, this species is now known as Ichneutica sulcana.^[4]

Description

Eggs of this species are hemispherical in shape and green in colour with a honeycomb on the surface.^[5]

George Hudson described the larva of this species as follows:

The full grown larva is about 1+3⁄4 inch in length, much attenuated posteriorly, pale reddish-ochreous, with numerous fine wavy darker lines; the subdorsal and lateral lines are straight and much more conspicuous; the spiracles are black, and there is a dark olive-green line down the midback.^[6]

George Hudson described the adults of I. sulcana as follows:

The expansion of the wings is from 1 1/2 to 1 3/4 inches. The fore-wings are light ochreous with the veins white; there is a shaded, brownish, longitudinal streak near the apex, another from the end of the cell to the termen, a stronger streak from the base of the wing to near the tornus, and another along the dorsum; there is a minute black dot near the base above the middle, a slightly larger dot at about one-third, a conspicuous dot between the origins of veins 3 and 4, and a very minute dot on vein 6. Hind-wings dark blackish-grey, cilia paler.^[7]

The wingspan of the adult male of this species is between 35 and 46 mm and for the female is between 42 and 48 mm.^[4] Specimens from the northern North Island can be smaller and have more pronounced shading on the forewing.^[4]

I. sulcana and I. supersulcana are very similar in appearance with no reliable visible differences between the two having been discovered.^[4] However I. supersulcana tends to be larger and paler with less well defined longitudinal dark streaks to its forewings.^[4] There are distinct differences in the male abdomen and genitalia of these two species.^[4] As at 2019 the two species have not been discovered to share a range as I. supersulcana appears restricted to the higher altitudes of the Tararua Range and Tongariro National Park.^[4]I. sulcana might also be confused with I. semivittata but I. sulcana is a larger species with a much darker abdomen and hindwing, and has only 1 to 3 dots on the forewing postmedian line.^[4]

When at rest amongst grass this species is well camouflaged.^[5]

Distribution

This species is endemic to New Zealand.^[8]I. sulcana are fairly common and are found throughout the North, South and Stewart Islands at a range of altitudes from the lowlands to the alpine zone.^[9]^[4] This species is said to be more common in the North Island.^[5]

Habitat

I. sulcana prefers to live in native grass, shrub and wetland habitats as well as in native forest.^[9]

Behaviour

Adults of this species are on the wing from December to May but have been recorded as on the wing in August and September in the northern parts of the North Island.^[4] Adults are attracted to sugar traps as well as to light.^[6]^[5]

Life cycle

The egg catches after about a week to a bright green larva.^[5] After feeding for a period, hibernates during winter during winter and is fully grown in spring.^[5] The larva pupates in a space just beneath the surface of the soil.^[5]^[6] The pupa is coloured brown and the adult moth emerges after a few weeks.^[5]

Host species

The larval host plants of I. sulcana include Gahnia setifolia ,^[10] Melicytus ramiflorus,^[5] and Microlaena avenacea as well as forest grasses and sedges and species within the genus Carex .^[4]

Related Research Articles

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.

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.

Ichneutica semivittata is a moth of the family Noctuidae. It is endemic to New Zealand. It can be found from the Three King Islands down to Stewart Island. The similar species I. sulcana can be distinguished from I. semivittata as the former is much larger, has a darker hindwing and abdomen and has only one to three spots located behind the middle of the forewing in comparison to the 8 or 9 of I. semivittata. This species lives in a variety of habitats from open grasslands to clearings in forest and at a range of altitudes from the sea level to the alpine zone. Larval host species include Juncus procera, Carex secta as well as on tussock grasses such as Poa cita, P. colensoi and Festuca novae-zelandiae. Adults of this species are on the wing from August to April and are attracted to light.

Ichneutica nullifera is a moth of the family Noctuidae. This species is endemic to New Zealand and can be found in the Tongariro National Park, along the Wellington coast and throughout the South Island. The adults are large and the forewing of adults can vary in colour from pale fawn to dark grey. The larvae are coloured a bright yellow-brown with a paler underside. The larval host species are in the genus Aciphylla and as a result the adult moths are often found in habitat dominated by species in this genus. Adults are on the wing from November to early April and are sometimes attracted to light.

Ichneutica arotis is a moth of the family Noctuidae. It is endemic to New Zealand. This species is found throughout the North and South Islands but has yet to be recorded on Stewart Island. I. arotis is variable in appearance and have been described as having a "northern dark form", a "typical" form and a "swamp" form. Robert Hoare hypothesised that this species may be in the process of evolving into several distinct species. However, as these forms show no difference in antennae or genitalia so, as at 2019, they are not regarded as separate species. Larval hosts include species in the genera Cortaderia and Schoenus as well as Phormium tenax. The caterpillar feeds at night and rests in during the day amongst dead flax leaves. It pupates in a loose cocoon either hidden at the base of a stem of flax or on the ground. The adults of this species is on the wing from September to April. In the North Island there have also been records of adults being on the wing in June to August.

Ichneutica blenheimensis is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found throughout the North, South and the Stewart Islands. This species appears to prefer drier eastern localities and is rarely collected in western North Island forested areas. It does not appear to be frequently collected in inland dry tussock grassland habitats. The host plant for the larvae of this species is likely to be the golden sand sedge pīngao which is now absent from the moths type locality. However Chappell has raised very young larvae on grass species and the more developed larvae consumed Phormium tenax. Adults are on the wing from November to March and are attracted to both light and sugar traps. The blackish forewing fringes are diagnostic of this species. But worn specimens of I. arotis can be confused with worn specimens of I. blenheimensis. However I. arotis can be distinguished from I. blenheimensis as it has a scale-tuft on the thorax and dark longitudinal stripes on the tegula. This species is classified as "At Risk, Naturally Uncommon" by the Department of Conservation.

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.

Ichneutica unica is a species of moth in the family Noctuidae. It is endemic to New Zealand and is found in the centre of the North Island and throughout the South Island. This moth is very similar in appearance to its close relatives Ichneutica phaula and Ichneutica toroneura. I. phaula can be distinguished as there is a difference in pectinations on the male antennae and I. toroneura can be distinguished as the black vein markings on the forewings is more uniform for that species in comparison to I. unica. I. unica is variable in appearance with the North Island specimens having a darker brown colour on the forewings and having a darker underside of the hindwings. This species inhabits open tussock grassland at various altitudes, coastal dunes, and inland volcanic dunes. Larvae feed on tussock grasses such as Chionochloa pallens and species in the genus Poa. Adult moths are on the wing from November to February and are attracted to both sugar and light traps.

Ichneutica steropastis, or the flax notcher moth, is a species of moth in the family Noctuidae. It is endemic to New Zealand and can be found throughout the country from the Three Kings Islands to Stewart Island as well as in the Chatham Islands. The larvae of this species feed on a variety of native and introduced plants however the New Zealand flax is one of the more well known host plants for the larvae of this moth. The larvae are nocturnal, hiding away in the base of the plants and coming out to feed at night. They create a distinctive notch in the leaf when they feed. The adults of this species are on the wing from October to March. Although adult specimens of I. steropastis are relatively easy to recognise they might possibly be confused with I. inscripta, I. theobroma or with darker forms of I. arotis. However I. steropastis can be distinguished as it has a long dark basal forewing streak that these three species lack.

Ichneutica purdii, the orange astelia wainscot, is a moth of the family Noctuidae. It is endemic to New Zealand. It can be found throughout the main islands of New Zealand. I. purdii is a relatively large, colourful moth, unlikely to be confused with any other endemic moth species in New Zealand. The larvae of this moth feed at night on species of Astelia. During the day they shelter in the interior of the plant. When fully grown the larvae can reach a length of approximately 48mm. The larvae are ocherous in colour with a pink flush with line markings but when ready to pupate these markings fade and the larvae take on a light golden hue with a rosy tinge to its rear segments. The deep wine coloured pupa is enclosed in a slight cocoon, with this being constructed below the soil, amongst debris or alternatively within a hollow stick. The adult moths are on the wing from October to March. Although this moth is found throughout the main islands of New Zealand it is more frequent in the south of New Zealand at higher altitudes of up to 1200m.

Ichneutica toroneura is a moth of the family Noctuidae. It is endemic to New Zealand. This species is similar to I. unica but can be distinguished from that species by the uniform black vein markings on the forewings of I. toroneura. It is also similar in appearance to I. acontistis but the base of the forewings of I. toroneura lack the dark stripe that can be found on the forewings of I. acontistis. The males of I. toroneura have longer pectinations on their antennae. I. toroneura is found in the centre of southern South Island in the tussock grasslands of Central Otago and the Mackenzie Basin. Larvae feed on tussock grasses Poa cita and Festuca novae-zelandiae. Adults are on the wing from November to January.

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.

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.

Ichneutica ceraunias is a moth of the family Noctuidae. It is endemic to New Zealand. This species is found from the central North Island to the bottom of the South Island. Hosts of the larvae are species of Chionochloa and Festuca. This colourful moth is variable in appearance and can be mistaken for Ichneutica dione. Adults are on the wing from October to February.

Ichneutica dione is a moth of the family Noctuidae. It is endemic to New Zealand. This moth species is closely related to I. ceraunias and is very similar in appearance to that species. However I. dione has a much more restrictive range, being found only in the alpine zone and hills of the South Island and is less commonly collected. Adults of the species are on the wing from December to February and although sometimes can be found flying during the day, they are more commonly seen at night.

Ichneutica virescens is a moth of the family Noctuidae. It is endemic to New Zealand, and is found in the southern North Island and throughout the South Island. The species is found in alpine, sub-alpine, and down to sea-level in grassland habitats. Adults are on the wing from November through to April. The likely larval host may be grasses, but larvae have been reared on a range of plants. The adults are similar to I. panda, I. falsidica and I. nobilia, but is distinguished by size, wing colouration, and antennae formation.

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.

Ichneutica sistens is a moth of the family Noctuidae. This species is endemic to New Zealand. It can be found in the central North Island and throughout the South Island, although it is more common on the eastern side of that latter Island. It is very variable in both colour and size. I. sistens prefers open habitat such as tussock grasslands, dunes and braided rivers. Larval host species include grasses in the family Poaceae and include species in the genera Rytidosperma and Elymus, as well as Poa cita and Agrostis capillaris. Adults are on the wing from January to May and are attracted to light.

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.

Physetica homoscia is a species of moth of the family Noctuidae. It is endemic to New Zealand and is found throughout New Zealand including in the Auckland Islands. This species inhabits places where its host plants are common and this includes costal dune habitat. It lives at a wide range of altitudes from sea-level up to at least 1750 m. The larvae of P. homoscia feed on Ozothamnus leptophyllus and Ozothamnus vauvilliersii. They are very active and drop to the ground when disturbed. Larvae are parasitised by a species of fly. This species pupates in the soil and the pupa life stage lasts for approximately 6 weeks. The adult moths are on the wing from September to June and are attracted to light. The adults of P. homoscia might possibly be confused with Ichneutica moderata however this latter species lacks the small white dots on the forewing veins of P. homoscia. Adults might also be confused with P. temperata but P. homoscia is significantly larger in size.

References

1 2 "Ichneutica sulcana (Fereday, 1880)". www.nzor.org.nz. 2021. Retrieved 2021-08-08.
↑ "Description of a (?) new Species of the Family Leucanidae, and a (?) new Species of the Genus (?) Chlenias". Transactions and Proceedings of the New Zealand Institute. 12: 267–270. 1880. ISSN 1176-6158. Wikidata Q104373652.
1 2 John Stewart Dugdale (23 September 1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa". Fauna of New Zealand. Department of Scientific and Industrial Research. 14: 210. doi:10.7931/J2/FNZ.14. ISSN 0111-5383. Wikidata Q45083134.
1 2 3 4 5 6 7 8 9 10 11 Robert J. B. Hoare (9 December 2019). Illustrator: Birgit E. Rhode. "Noctuinae (Insecta: Lepidoptera: Noctuidae) part 2: Nivetica, Ichneutica" (PDF). Fauna of New Zealand. 80: 1–455. doi:10.7931/J2/FNZ.80. ISSN 0111-5383. Wikidata Q94481265. Archived from the original (PDF) on 18 April 2021.
1 2 3 4 5 6 7 8 9 David Edward Gaskin (1966). "The butterflies and common moths of New Zealand". New Zealand: 103–104. Wikidata Q115000559.
1 2 3 Hudson, G. V. (1928). The Butterflies and Moths of New Zealand. Wellington: Ferguson & Osborn Ltd. p. 54. OCLC 25449322.
↑ George Vernon Hudson (1898), New Zealand moths and butterflies (Macro-lepidoptera) , Illustrator: George Hudson, London, p. 13, doi:10.5962/BHL.TITLE.7912, OCLC 980865393, Wikidata Q19073637 {{citation}}: CS1 maint: location missing publisher (link)
↑ "Ichneutica sulcana (Fereday, 1880)". nztcs.org.nz. 2021. Retrieved 2021-08-08.
1 2 Robert J. B. Hoare (2014). A Photographic Guide to Moths & Butterflies of New Zealand. Illustrator: Olivier Jean-Philippe Ball. p. 130. ISBN 978-1-86966-399-5. Wikidata Q59396160.
↑ George Vernon Hudson (1939), A supplement to the butterflies and moths of New Zealand, Illustrator: George Hudson, Wellington, p. 393, OCLC 9742724, Wikidata Q109420935 {{citation}}: CS1 maint: location missing publisher (link)

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[NZOR-1] 1 2 "Ichneutica sulcana (Fereday, 1880)". www.nzor.org.nz. 2021. Retrieved 2021-08-08.

[Fereday1880-2] "Description of a (?) new Species of the Family Leucanidae, and a (?) new Species of the Genus (?) Chlenias". Transactions and Proceedings of the New Zealand Institute. 12: 267–270. 1880. ISSN 1176-6158. Wikidata Q104373652.

[:3-3] 1 2 John Stewart Dugdale (23 September 1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa". Fauna of New Zealand. Department of Scientific and Industrial Research. 14: 210. doi:10.7931/J2/FNZ.14. ISSN 0111-5383. Wikidata Q45083134.

[:1-4] 1 2 3 4 5 6 7 8 9 10 11 Robert J. B. Hoare (9 December 2019). Illustrator: Birgit E. Rhode. "Noctuinae (Insecta: Lepidoptera: Noctuidae) part 2: Nivetica, Ichneutica" (PDF). Fauna of New Zealand. 80: 1–455. doi:10.7931/J2/FNZ.80. ISSN 0111-5383. Wikidata Q94481265. Archived from the original (PDF) on 18 April 2021.

[Gaskin1966-5] 1 2 3 4 5 6 7 8 9 David Edward Gaskin (1966). "The butterflies and common moths of New Zealand". New Zealand: 103–104. Wikidata Q115000559.

[Hudson1928-6] 1 2 3 Hudson, G. V. (1928). The Butterflies and Moths of New Zealand. Wellington: Ferguson & Osborn Ltd. p. 54. OCLC 25449322.

[Hudson_1898-7] George Vernon Hudson (1898), New Zealand moths and butterflies (Macro-lepidoptera) , Illustrator: George Hudson, London, p. 13, doi:10.5962/BHL.TITLE.7912, OCLC 980865393, Wikidata Q19073637 {{citation}}: CS1 maint: location missing publisher (link)

[8] "Ichneutica sulcana (Fereday, 1880)". nztcs.org.nz. 2021. Retrieved 2021-08-08.

[:0-9] 1 2 Robert J. B. Hoare (2014). A Photographic Guide to Moths & Butterflies of New Zealand. Illustrator: Olivier Jean-Philippe Ball. p. 130. ISBN 978-1-86966-399-5. Wikidata Q59396160.

[Hudson1939-10] George Vernon Hudson (1939), A supplement to the butterflies and moths of New Zealand, Illustrator: George Hudson, Wellington, p. 393, OCLC 9742724, Wikidata Q109420935 {{citation}}: CS1 maint: location missing publisher (link)

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