Cameraria ulmella
In 3 days ~10% in a week ~20%
Cameraria ulmella is a moth of the family Gracillariidae. It is known from Ontario and Québec in Canada, and Texas, Kentucky, Maine, Maryland, Michigan, New York, Georgia, Illinois and Connecticut in the United States. The wingspan is 6.5–7 mm.
The larvae feed on Quercus alba, Quercus ilicifolia, Quercus rubra, Quercus velutina and Ulmus species (including Ulmus americana, Ulmus fulva and Ulmus rubra). They mine the leaves of their host plant. The mine has the form of a flat mine on the upperside of the leaf. The pupa of the summer brood is formed under a flat silken cocoon. A later hibernating brood changes from the usual green color to a pale yellow color, and passes the winter in silk lined chambers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Elm Leafminer sighting in Dallas on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1019th most-seen of the 1412 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 an Elm Leafminer in Dallas on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Elm Leafminer sightings, Dallas ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Elm Leafminer is recorded against all the insects logged in Dallas (9 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.
