Atomotricha isogama

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Atomotricha isogama
Atomotricha isogama 97204219.jpg
Male
Atomotricha isogama 164272323.jpg
Female
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Oecophoridae
Genus: Atomotricha
Species:
A. isogama
Binomial name
Atomotricha isogama
Meyrick, 1909 [1]

Atomotricha isogama is a moth in the family Oecophoridae. [2] It was first described by Edward Meyrick in 1909. This species is endemic to New Zealand and has been observed in the North and South Islands. Larvae are leaf litter feeders and have been recorded as emerging in the New Zealand spring. Adults have been observed on the wing from July to January.

Contents

Taxonomy

This species was first described by Edward Meyrick in 1909 using two specimens collected in Wellington by George Hudson. [3] In 1927 Arthur Philpott studied the male genitalia of this species. [4] The male lectotype specimen is held at the Natural History Museum, London. [5]

Description

Illustration of A. isogama by Hudson. Fig 40 MA I437624 TePapa Plate-XXV-The-butterflies full (cropped).jpg
Illustration of A. isogama by Hudson.

Meyrick first described this species as follows:

♂♀. 23 mm. Head and thorax whitish-ochreous, in ♂ more brownish-tinged. Palpi whitish-ochreous, externally with a few scattered dark-fuscous scales. Antennae whitish-ochreous, obscurely ringed with dark fuscous. Abdomen whitish-ochreous, in ♂ more brownish, dorsally suffused with brassy-golden except on margins of segments. Forewings elongate, costa moderately arched, apex obtuse, termen very obliquely rounded; whitish-ochreous, with a few scattered dark-fuscous scales, in ♂ mostly suffused with brownish except on dorsal streak; a broad pale dorsal streak from base to tornus, upper edge prominent near base, where there is a tuft of scales, and about middle of dorsum; some dark-fuscous suffusion extending above this streak from base to 3⁄5 of disc, and thence upwards to costa; stigmata round, whitish-ochreous, edged with dark fuscous, plical obliquely beyond first discal; an angulated dark-fuscous line or series of dots from a of costa to tornus : cilia ochreous-whitish, in 3- irrorated with grey, basal third barred with fuscous. Hind wings very pale whitish-ochreous; a cloudy round fuscous discal spot; apex and lower half of termen suffused with fuscous irroration; cilia ochreous-whitish, round apex and on lower half of termen with a suffused fuscous shade. [3]

The female of this species has fully developed wings. [3] As an adult moth this species is variable in the colour intensity of its forewings, with some specimens being yellow-ochreous in colour. [6]

Distribution

This species is endemic to New Zealand. [1] It has been observed in both the North and South Islands. [7] [6] [8]

Life cycle

A. isogama. Atomotricha isogama 219884853.jpg
A. isogama.

The larvae of this species have been recorded as emerging in the New Zealand spring and attain their full size of over 2.5 mm in length by autumn. [9] Adults of this species have been observed on the wing from July until January. [10]

Behaviour

Hudson regarded the adults of A. isogama as being sluggish and noted that the species frequented urban gardens and cultivated plants. [6] During the day the adult moth can be found resting on tree trunks or fences, often on the underside of structures almost touching the ground. [6] They have been observed having entered houses and have a habit of drowning in open containers filled with water. [6]

Hosts

The larvae of this species feed on leaf litter. [9]

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References

  1. 1 2 "Atomotricha isogama Meyrick, 1909". www.nzor.org.nz. Retrieved 2022-05-01.
  2. ↑ Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity: Kingdom animalia: chaetognatha, ecdysozoa, ichnofossils. Vol. 2. p. 462. ISBN   978-1-877257-93-3. OCLC   973607714. OL   25288394M. Wikidata   Q45922947.
  3. 1 2 3 Edward Meyrick (1909), Notes and descriptions of New Zealand Lepidoptera, vol. 41, pp. 13–14, Wikidata   Q110207561
  4. ↑ Alfred Philpott (15 August 1927). "The male genitalia of the New Zealand Oecophoridae". Transactions and Proceedings of the New Zealand Institute. 53: 102–113. ISSN   1176-6158. Wikidata   Q63131107.
  5. ↑ Dugdale , J. S. (23 September 1988). "Lepidoptera - annotated catalogue, and keys to family-group taxa". Fauna of New Zealand. 14. Department of Scientific and Industrial Research: 90. doi:10.7931/J2/FNZ.14. ISSN   0111-5383. Wikidata   Q45083134.
  6. 1 2 3 4 5 Hudson, G. V. (1928), The butterflies and moths of New Zealand, Illustrator: George Hudson, Wellington: Ferguson and Osborn Limited, pp. 288–289, LCCN   88133764, OCLC   25449322, Wikidata   Q58593286
  7. ↑ "Atomotricha isogama Meyrick, 1909". www.gbif.org. Retrieved 2023-11-29.
  8. ↑ George Vernon Hudson (1939), A supplement to the butterflies and moths of New Zealand, Illustrator: George Hudson, Wellington: Ferguson and Osborn Limited, p. 451, OCLC   9742724, Wikidata   Q109420935
  9. 1 2 J. S. Dugdale (June 1996). "Natural history and identification of litter‐feeding Lepidoptera larvae (Insecta) in beech forests, Orongorongo Valley, New Zealand, with especial reference to the diet of mice(Mus musculus)". Journal of the Royal Society of New Zealand. 26 (2): 251–274. doi:10.1080/03014223.1996.9517513. ISSN   0303-6758. Wikidata   Q56091899.
  10. ↑ "Atomotricha isogama". iNaturalist NZ. Retrieved 2023-11-29.
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