Phytomyza syngenesiae
In 3 days ~10% in a week ~20%
Chromatomyia syngenesiae, the ragwort leaf miner or chrysanthemum leaf miner, also known by the synonym Phytomyza syngenesiae, is a Palaearctic fly, also present in Australia and New Zealand, with larvae that make leaf mines in Senecio species and other related herbaceous daisies. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand | |
| 2 | Seattle | 🇺🇸 United States | |
| 3 | Sydney | 🇦🇺 Australia | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Chrysanthemum Leafminer sighting in Seattle on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 253rd most-seen of the 428 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 Chrysanthemum Leafminer in Seattle on a given day, so our monthly data shows no clear season.
Among the best
Of the 5 cities where we can rate Chrysanthemum Leafminer sightings, Seattle ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Auckland (New Zealand, under 5%).
GBIF citizen-science records
It is estimated from how often the Chrysanthemum Leafminer is recorded against all the insects logged in Seattle (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.
