Izatha dasydisca is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Oecophoridae

Oecophoridae

Oecophoridae is a family of small moths in the superfamily Gelechioidea. The phylogeny and systematics of gelechoid moths are still not fully resolved, and the circumscription of the Oecophoridae is strongly affected by this....

 family. It is endemic to New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, where it is only known from the northern half of the North Island.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is 15–19 mm for males and about 26 mm for females. Adults have been recorded in December, January and February.

Etymology

The name comes from the Greek 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

Izatha austera

Izatha austera is a moth of the Oecophoridae family. It is endemic to New Zealand, where it is widespread throughout the North Island, with a single South Island record from north-west Nelson.The wingspan is 13–19 mm for males and 16.5–25 mm for females...

.