Oecanthus californicus
In 3 days ~10% in a week ~30%
Oecanthus californicus, the western tree cricket, is a species of tree cricket in the family Oecanthidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Big Bend National Park | 🇺🇸 United States | |
| 3 | Yosemite National Park | 🇺🇸 United States | |
| 4 | Joshua Tree National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Angeles | 🇺🇸 United States | |
| 2 | San Diego | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Tree Cricket sighting in Yosemite National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 159th most-seen of the 227 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 to October
In those months about 10% of wildlife watchers report a Western Tree Cricket in Yosemite National Park on a given day, against under 5% in November to July, the lowest months. Those are among Yosemite National Park's driest months, with about 30 mm of rain a month against 220 mm in January.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Western Tree Cricket sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
3rd of 4
Of the 4 parks where we can rate Western Tree Cricket sightings, Yosemite National Park ranks 3rd at under 5%. The best odds are in Zion National Park (United States, about 10%) and Big Bend National Park (United States, about 10%).
Same order: Orthoptera
The closest relatives of the Western Tree Cricket that you can see in Yosemite National Park (order Orthoptera, Grasshoppers, Crickets, and Katydids) are Crackling Forest Grasshopper (about 20%), Mormon Cricket (about 10%) and Nevada Red-Winged Grasshopper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Tree Cricket is recorded against all the insects logged in Yosemite National Park (8 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.
