Caloptilia fraxinella
In 3 days ~20% in a week ~40%
Caloptilia fraxinella (ash leaf cone roller moth) is a moth of the family Gracillariidae. It is known from Canada (Québec, Alberta, Ontario and Saskatchewan) and the United States (Michigan, Vermont, Ohio, Connecticut, New York and Maine).
It is considered a significant pest of horticultural ash. The larvae feed on Fraxinus species (including Fraxinus americana, Fraxinus mandshurica, Fraxinus nigra and Fraxinus pennsylvanica) and Ligustrum species. They mine the leaves of their host plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Ash Leaf Cone Roller sighting in Edmonton on a given day, based on 50 verified sightings from GBIF citizen-science data. It is the 54th most-seen of the 390 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April–October and December
In those months about 10% of wildlife watchers report an Ash Leaf Cone Roller in Edmonton on a given day, against under 5% in January–March and November, the lowest months.
Yes
Of the 3 cities where we can rate Ash Leaf Cone Roller sightings, Edmonton has the highest daily chance: about 10%. Next come Calgary (Canada, under 5%) and Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Ash Leaf Cone Roller is recorded against all the insects logged in Edmonton (50 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.
