Contarinia verrucicola
In 3 days ~10% in a week ~20%
Contarinia verrucicola, known generally as the linden wart gall midge, is a species of gall midges in the family Cecidomyiidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Linden Wart Gall Midge sighting in Boston on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 529th most-seen of the 1200 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.
July
In that month about 10% of wildlife watchers report a Linden Wart Gall Midge in Boston on a given day, against under 5% in August to June, the lowest months.
Among the best
Of the 6 cities where we can rate Linden Wart Gall Midge sightings, Boston ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Minneapolis [Saint Paul] (United States, under 5%).
Same family: Cecidomyiidae
The closest relatives of the Linden Wart Gall Midge that you can see in Boston (family Cecidomyiidae, Gall and Forest Midges) are Carbonifera Goldenrod Gall Midge (about 10%) and Oak Leaf Gall Midge (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Linden Wart Gall Midge is recorded against all the insects logged in Boston (20 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.
