Graminella nigrifrons
In 3 days ~10% in a week ~20%
Graminella nigrifrons, the black-faced leafhopper, is a species of leafhopper in the family Cicadellidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Houston | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black-Faced Leafhopper sighting in Houston on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 790th most-seen of the 1057 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black-Faced Leafhopper in Houston on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Black-Faced Leafhopper sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 6 cities where we can rate Black-Faced Leafhopper sightings, Houston ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Austin (United States, under 5%), Baltimore (United States, under 5%) and Dallas (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Black-Faced Leafhopper is recorded against all the insects logged in Houston (16 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.
