Stigmella anomalella
In 3 days ~10% in a week ~20%
The rose leaf miner (Stigmella anomalella) is a moth of the family Nepticulidae. It is found in all of Europe, east to the eastern part of the Palearctic realm. The moths have shining greenish-bronzy forewings, lighter posteriorly and with the apical fourth purple. The wingspan is 5–6 millimetres (0.20–0.24 in). Head ferruginous-orange to black, collar yellow-whitish. Antennal eyecaps whitish. Hindwings grey.
Adults are on wing from May to August. There are two generations per year. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Rose Leaf Miner sighting in Portland on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 338th most-seen of the 507 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.
December
In that month about 10% of wildlife watchers report a Rose Leaf Miner in Portland on a given day, against under 5% in January to November, the lowest months. That is one of Portland's wettest months, with about 250 mm of rain against 10 mm in July.
Only Portland, in our data
Portland is the only city on Wallace's Line with enough records to rate Rose Leaf Miner sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Rose Leaf Miner is recorded against all the insects logged in Portland (10 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.
