Eudonia bisinualis
In 3 days ~20% in a week ~50%
Eudonia bisinualis is a species of moth in the family Crambidae. It was described by George Vernon Hudson in 1928. This species is endemic to New Zealand. E. bisinualis has a well marked discal forewing streak and as such has been treated as a separate species. However it has been argued that as this wing patternation is variable, and that this species is outwardly identical in appearance to Eudonia cymatias, and finally that the male genitalia of both these species is identical, they should be regarded as the same species.
Adults are on wing from October to May. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
With luck
About 10% of wildlife watchers report a Eudonia bisinualis sighting in Egmont National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 153rd most-seen of the 191 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
December to March
In those months about 10% of wildlife watchers report a Eudonia bisinualis in Egmont National Park on a given day, against under 5% in April to November, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Eudonia bisinualis sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Egmont National Park, in our data
Egmont National Park is the only park on Wallace's Line with enough records to rate Eudonia bisinualis sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Eudonia
The closest relatives of the Eudonia bisinualis that you can see in Egmont National Park (genus Eudonia) are Eudonia melanaegis (about 10%), Eudonia feredayi (about 10%) and Mountain Scoparia (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eudonia bisinualis is recorded against all the insects logged in Egmont National Park (6 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.
