This species is native to Australia and likely adventive to New Zealand. In Australia this species is found in central and southern New South Wales, Australian Capital Territory, Victoria, Tasmania, South Australia and southwesternWestern Australia. In New Zealand this species was first recorded in Auckland on or prior to 1939 and has also been observed in Napier. It is regarded as being established in New Zealand but is scarce and local.
Hosts
Although the life history of this species is not known it has been hypothesised that the larvae of O. squalidellafeed on leaf litter.
Behaviour
In New Zealand adults are on the wing from October to December. The adults of this species are attracted to light.