Schizomyia impatientis
In 3 days ~10% in a week ~20%
Schizomyia impatientis is a species of fly in the family Cecidomyiidae. This gall midge species induces galls on jewelweeds in eastern North America. It was first described by Carl Robert Osten-Sacken in 1862. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Jewelweed Gall Midge sighting in Boston on a given day, based on 18 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.
August and September
In those months about 10% of wildlife watchers report a Jewelweed Gall Midge in Boston on a given day, against under 5% in October to July, the lowest months.
Yes
Of the 2 cities where we can rate Jewelweed Gall Midge sightings, Boston has the highest daily chance: under 5%. Next come Washington (United States, under 5%).
Same family: Cecidomyiidae
The closest relatives of the Jewelweed 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 Jewelweed Gall Midge is recorded against all the insects logged in Boston (18 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.
