Eudonia bisinualis
In 3 days ~30% in a week ~60%
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 Auckland on a given day, based on 113 verified sightings from GBIF citizen-science data. It is the 76th most-seen of the 689 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
October and November
In those months about 20% of wildlife watchers report a Eudonia bisinualis in Auckland on a given day, against under 5% in July and August, 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 Auckland, in our data
Auckland is the only city 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 Auckland (genus Eudonia) are Eudonia philerga (about 20%), Eudonia leptalea (about 10%) and Greater Orange-Spot 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 Auckland (113 verified sightings), 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.
