Iteomyia major
In 3 days ~30% in a week ~60%
Iteomyia major is a gall midge which forms galls on willows (Salix species). It was first described by Jean-Jacques Kieffer in 1889. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Iteomyia major sighting in Sierra Nevada National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 183rd most-seen of the 479 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
September
In that month about 30% of wildlife watchers report an Iteomyia major in Sierra Nevada National Park on a given day, against under 5% in May and October–March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Iteomyia major sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Sierra Nevada National Park, in our data
Sierra Nevada National Park is the only park on Wallace's Line with enough records to rate Iteomyia major sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Iteomyia major is recorded against all the insects logged in Sierra Nevada National Park (36 verified sightings from 2019 to 2026), 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.
