''Perixestis eucephala'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family

Xyloryctidae Xyloryctidae is a family of moths contained within the superfamily Gelechioidea described by Edward Meyrick in 1890. Most genera are found in the Indo-Australian region. While many of these moths are tiny, some members of the family grow to a win ...

. It was described by

Alfred Jefferis Turner Alfred Jefferis Turner (3 October 1861, in Canton – 29 December 1947, in Brisbane, Queensland, Australia) was a pediatrician and noted amateur entomologist. He was the son of missionary Frederick Storrs-Turner. He introduced the use of dip ...

in 1902. It is found in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, where it has been recorded from

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

and

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 29–38 mm. The forewings are snow white with the costal edge ochreous, at the extreme base blackish. The hindwings are grey, towards the inner-margin whitish. The larvae feed on ''

Grevillea striata ''Grevillea striata'', also known as beefwood, is a tree or shrub native to all Australian states, with the exception of Victoria and Tasmania. Alternative common names for this species include western beefwood, beef oak, beef silky oak and sil ...

''. They bore in the stem of their host plant.Xyloryctine Moths of Australia

References

Xyloryctidae Moths described in 1902 {{Xyloryctidae-stub