Epiblema scudderiana
In 3 days ~10% in a week ~20%
Epiblema scudderiana, the goldenrod gall moth, is a species of tortricid moth in the family Tortricidae. As their common name suggests, they do feed on and form galls on goldenrod stems. To overwinter the caterpillars line the inside of their galls with silk before going into diapause.
The MONA or Hodges number for Epiblema scudderiana is 3186. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Goldenrod Gall Moth sighting in Toronto on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 732nd most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Goldenrod Gall Moth in Toronto on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Goldenrod Gall Moth sightings, Toronto ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Houston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Goldenrod Gall Moth is recorded against all the insects logged in Toronto (18 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.
