Tachystola acroxantha
In 3 days ~50% in a week ~80%
Tachystola acroxantha is a moth of the family Oecophoridae. It is native to Australia, but is an invasive species in New Zealand and Europe, probably imported with Australian plants. The wingspan is 13–15 mm. In Britain the moth flies from late-April to September, possibly in two extended generations or in a succession of broods. It comes to light and has been found in gardens, heath and in a flour mill.
Egg Undescribed. Larvae Length 11–14 mm. The body is a translucent greyish white to creamy white with the gut showing as a darker dorsal line, which gives a larva the appearance of being grey. Its head is brown with darker mandibles.
In Australia the larvae have been found between flat spun, fallen Eucalyptus leaves, on the ground or on fallen branches, favouring moist leaves. In Great Britain, Alexander Allen obtained eggs from a captured female and saw the larvae initially feeding gregariously in a silken web and as they grew they fed alone. Some ate withered leaves, but all the larvae preferred fresh leaves. The first wild larvae found in Great Britain was in the garden of the Natural History Museum, London (BMNH) in March 1998. They were in loose silken tubes... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rakiura National Park | 🇳🇿 New Zealand | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | Auckland | 🇳🇿 New Zealand | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Leeds | 🇬🇧 United Kingdom | |
| 7 | Melbourne | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report a Ruddy Streak sighting in Rakiura National Park on a given day, based on 27 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 24th most-seen of the 118 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
November
In that month about 40% of wildlife watchers report a Ruddy Streak in Rakiura National Park on a given day, against under 5% in February–March, May–August and October, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Ruddy Streak sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 2 parks where we can rate Ruddy Streak sightings, Rakiura National Park has the highest daily chance: about 20%. Next come Blue Mountains National Park (Australia, about 10%).
Same family: Oecophoridae
The closest relatives of the Ruddy Streak that you can see in Rakiura National Park (family Oecophoridae, Concealer Moths) are Izatha huttoni (about 20%) and White-Shouldered House Moth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ruddy Streak is recorded against all the insects logged in Rakiura National Park (27 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
