Idioglossa metallochrysa

Idioglossa metallochrysa is a very small species of golden-metallic coloured moth of the family Batrachedridae living in a subtropical highland climate, at least in Australia, and of which the caterpillars feed on the plant Cheilocostus speciosus, at least in Indonesia.

Idioglossa metallochrysa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Batrachedridae
Genus: Idioglossa
Species:
I. metallochrysa
Binomial name
Idioglossa metallochrysa

Taxonomy

It was first described by Alfred Jefferis Turner in 1917 from three specimens collected in November on Tamborine Mountain in Queensland, Australia.[1][2] They were apparently all female.[1][3] There are three syntypes, two are kept at Australian National Insect Collection, and one at the Natural History Museum, London,[3] courtesy of Edward Meyrick.[1]

The Australian entomologist Ian Francis Bell Common classified it in the subfamily Stathmopodinae of the family Oecophoridae in 1996.[4][5] It was reclassified in the subfamily Batrachedrinae of the Batrachedridae by Kazuhiro Sugisima in 2000, based on more detailed examination of the genitalia.[5]

Etymology

In the original description, Jefferis Turner derives the specific epithet from the word μεταλλοχρυσος, which he states signifies 'golden-metallic'.[1]

Description

The wingspan is only 9–10 mm. The head, antenna and palpi, and the legs, are whitish. The thorax and the rest of the body is ochreous-whitish.[1]

The fore-wings are also ochreous-whitish, but with a suffused fuscous spot under the costa, an "ochreous suffusion between it and dorsum", and some golden-metallic scales in a line from three-fourths of the costa to the termen beneath the middle. The both pairs of wings have long hairs coming off them, which Jefferis Turner terms cilia in his description, in the fore-wing these are ochreous coloured, dorsally grey, whereas in the hind-wing they are "grey-whitish". The hind-wings are ochreous, but with four transverse "golden-metallic" bands across them, the last one of which is broader than the others, and edged at the end of the wing with fuscous.[1]

Distribution

It is known from Kuranda in Queensland, Australia,[2] but has also been found on the island of Java, Indonesia.[3]

Ecology

The locality it was collected, Tamborine Mountain,[1] has a cool subtropical highland climate, with the annual rainfall of about 1,550 mm.[6] The imagoes (adult moths) are known to be active in November, based on when they were first collected,[1] which is at the beginning of the warmer rainy season.[7] In Java, Cheilocostus speciosus has been recorded as a host plant for the caterpillars of this species,[3][8] This is a mid-sized, herbaceous, ginger-like plant from the tropical forest understory in the Costaceae family.

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See also

References
  1. Jefferis Turner, Alfred (1917). "Lepidopterological Gleanings". Proceedings of the Royal Society of Queensland. 29: 84. Retrieved 22 December 2019.
  2. Savela, Markku (9 November 2018). "Idioglossa". Lepidoptera and some other life forms. Retrieved 22 December 2019.
  3. "Species Idioglossa metallochrysa Turner, 1917". Australian Faunal Directory. Australian Government, Department of the Environment and Energy. 8 March 2012. Retrieved 23 December 2019.
  4. Common, Ian Francis Bell (1996). Nieisen, E. S.; Edwards, E. D.; Rangsi, T. V. (eds.). "Oecophoridae in Checklist of the Lepidoptera of Australia". Monographs on Australian Lepidoptera. 4: 59−89，341-346. ISBN 0-643-05028-0.
  5. Sugisima, Kazuhiro; Arita, Yutaka (2000). "A new species of a gelechioid genus, Idioglossa Walsingham (Lepidoptera, Batrachedridae, Batrachedrinae), from Japan". Lepidoptera Science. 51 (4): 319–336. doi:10.18984/lepid.51.4_319. Retrieved 22 December 2019.
  6. "Tamborine Mountain". Scenic Rim Regional Council. Archived from the original on 6 October 2011. Retrieved 27 June 2011.
  7. "MT TAMBORINE FERN ST". Climate statistics for Australian locations. Bureau of Meteorology. December 2015. Retrieved 1 December 2015.
  8. HOSTS - a Database of the World's Lepidopteran Hostplants


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