Synanthedon acerni
In 3 days ~10% in a week ~20%
Synanthedon acerni, the maple callus borer, is a moth of the family Sesiidae. It is found in Eastern Canada and much of the Eastern United States. The wingspan is 18–25 mm. The moths are on the wing from June to July, but in the United States from April on.
The larvae feed on Acer species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Maple Callus Borer Moth sighting in Montreal on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 469th most-seen of the 926 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 Maple Callus Borer Moth in Montreal on a given day, so our monthly data shows no clear season.
Yes
Of the 3 cities where we can rate Maple Callus Borer Moth sightings, Montreal has the highest daily chance: under 5%. Next come Chicago (United States, under 5%) and Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Maple Callus Borer Moth is recorded against all the insects logged in Montreal (13 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.
