Epiblema strenuana
In 3 days ~10%
Epiblema strenuana, the stem-galling moth or ragweed borer, is a moth of the family Tortricidae. It is endemic to North America, but was introduced to Australia from Mexico to control the weeds of the family Asteraceae (Xanthium occidentale, Ambrosia artemisiifolia and Parthenium hysterophorus) in 1982. It is occasionally misspelled as Epiblema strenuanum.
The wingspan is about 15 mm. The larvae mainly feed on Asteraceae species, including Ambrosia and Xanthium. It has also been recorded on Chenopodium species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Ragweed Borer Moth sighting in Toronto on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1544th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Ragweed Borer Moth in Toronto on a given day, so our monthly data shows no clear season.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Ragweed Borer Moth sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 7 cities where we can rate Ragweed Borer Moth sightings, Toronto ranks 6th at under 5%, level with the leaders once rounded. The best odds are in Austin (United States, under 5%), Dallas (United States, under 5%) and Brisbane (Australia, under 5%).
GBIF citizen-science records
It is estimated from how often the Ragweed Borer Moth is recorded against all the insects logged in Toronto (5 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.
