Contarinia verrucicola
In 3 days ~10% in a week ~30%
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 Minneapolis [Saint Paul] on a given day, based on 32 verified sightings from GBIF citizen-science data. It is the 216th most-seen of the 672 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June–July and September
In those months about 10% of wildlife watchers report a Linden Wart Gall Midge in Minneapolis [Saint Paul] on a given day, against under 5% in August and October–May, the lowest months. Those are among Minneapolis [Saint Paul]'s wettest months, with about 100 mm of rain a month against 20 mm in January.
Yes
Of the 6 cities where we can rate Linden Wart Gall Midge sightings, Minneapolis [Saint Paul] has the highest daily chance: under 5%. Next come Boston (United States, under 5%) and Montreal (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Linden Wart Gall Midge is recorded against all the insects logged in Minneapolis [Saint Paul] (32 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.
