Izatha dasydisca

Izatha dasydisca
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Oecophoridae
Genus:	Izatha
Species:	I. dasydisca
Binomial name
	Izatha dasydisca; Hoare, 2010[1]

Izatha dasydisca is a species of moth in the family Oecophoridae. It is endemic to New Zealand. This species is classified as "At Risk, Naturally Uncommon" by the Department of Conservation.

Taxonomy and etymology

This species was first described by Robert J. B. Hoare in 2010 from a specimen collected by John S. Dugdale at Mount Auckland in Auckland and named Izatha dasydisca.[1][2] The name of the species comes from the Greek word dasys (meaning shaggy) and diskos (indicating the disc of the forewing) and refers to the scale-tufts which help to distinguish this species from Izatha austera.[2]

Description

The wingspan is 15–19 mm for males and about 26 mm for females.[2] I. dasydisca is visually very similar to I. austera.[2] However the male I. dasydisca can be distinguished by its mottled pale orange to reddish brown antennae.[2] I. dasydisca also has large forewing scale-tufts and its hindwing shape is smoothly rounded.[2] I. dasydisca has very dark hindwings which helps distinguish it from its near relative I. caustopa.[2]

Distribution

This species is endemic to New Zealand,[1] where it is only known from the northern half of the North Island in the Northland, Auckland and Gisborne areas.[2]

Biology and behaviour

The larvae have yet to be discovered.[2] Adults have been recorded on the wing in December, January and February.[2] The species has been collected by sweeping and by capturing when at rest on a tree trunk.[2] It appears this species is not attracted to light traps.[2]

Hosts and habitat

The host species of the larvae of I. dasydisca are unknown.[2] The adults of the species apparently prefers forest habitat as specimens have been collected in beech as well as podocarp forest.[2]

Conservation Status

This species has been classified as having the "At Risk, Naturally Uncommon" conservation status under the New Zealand Threat Classification System.[3]

References

"Izatha dasydisca Hoare, 2010". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 2018-05-23.
Hoare, R. J. B. (2010). "Izatha (Insecta: Lepidoptera: Gelechioidea: Oecophoridae)" (PDF). Fauna of New Zealand. 65: 1–201. ISBN 9780478347258.
Hoare, R.J.B.; Dugdale, J.S.; Edwards, E.D.; Gibbs, G.W.; Patrick, B.H.; Hitchmough, R.A.; Rolfe, J.R. (2017). "Conservation status of New Zealand butterflies and moths (Lepidoptera), 2015" (PDF). New Zealand Threat Classification Series. 20: 8.

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[:2-1] "Izatha dasydisca Hoare, 2010". www.nzor.org.nz. Landcare Research New Zealand Ltd. Retrieved 2018-05-23.

[:1-2] Hoare, R. J. B. (2010). "Izatha (Insecta: Lepidoptera: Gelechioidea: Oecophoridae)" (PDF). Fauna of New Zealand. 65: 1–201. ISBN 9780478347258.

[:0-3] Hoare, R.J.B.; Dugdale, J.S.; Edwards, E.D.; Gibbs, G.W.; Patrick, B.H.; Hitchmough, R.A.; Rolfe, J.R. (2017). "Conservation status of New Zealand butterflies and moths (Lepidoptera), 2015" (PDF). New Zealand Threat Classification Series. 20: 8.