Stirellus bicolor
In 3 days ~10% in a week ~30%
Stirellus bicolor is a species of leafhopper native to North America. Two color forms are known. Adults found during the summer in hot climates are typically iridescent with prominent black stripes. Specimens in cooler climates are drab with translucent wings. The two varieties were originally thought to be separate species.
Stirellus bicolor feeds on bluestem grasses and broomsedge. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monterrey | 🇲🇽 México | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Stirellus bicolor sighting in Shenandoah National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 447th most-seen of the 723 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.
August and September
In those months about 10% of wildlife watchers report a Stirellus bicolor in Shenandoah National Park on a given day, against under 5% in October to July, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Stirellus bicolor sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Shenandoah National Park, in our data
Shenandoah National Park is the only park on Wallace's Line with enough records to rate Stirellus bicolor sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Cicadellidae
The closest relatives of the Stirellus bicolor that you can see in Shenandoah National Park (family Cicadellidae, Typical Leafhoppers) are Coppery Leafhopper (about 10%), Broad-Headed Sharpshooter (about 10%) and Versute Sharpshooter (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Stirellus bicolor is recorded against all the insects logged in Shenandoah National Park (12 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.
