Xylocopa californica
In 3 days ~10% in a week ~20%
The California carpenter bee or Western carpenter bee, Xylocopa californica, is a species of carpenter bee in the order Hymenoptera, and it is native to western North America. There are approximately 400 species worldwide of the genus Xylocopa. X. californica is typically found in California, Nevada, Oregon, Washington, Utah, Arizona, New Mexico, Texas, and Northwestern Mexico. It is especially abundant, along with X. sonorina, in the Central Valley and in Southern California, including the Mojave Desert. They are agriculturally beneficial insects and pollinators of diverse California chaparral and woodlands and desert native plant species. This carpenter bee is active during hot seasons. Therefore, they are considered an endothermic insect as it absorbs heat in the desert conditions. As the bee absorbs too much heat in its body, it has to limit the time it flies and fly in the time of day in which it is cooler.
Their head is larger and thicker than their thorax; however, the size of the head differs between females and males. Female carpenter bees have bigger heads than males with more narrow heads. The California carpenter bee is all black, with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Canyon National Park | 🇺🇸 United States | |
| 2 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 3 | Big Bend National Park | 🇺🇸 United States | |
| 4 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 5 | Zion National Park | 🇺🇸 United States | |
| 6 | Saguaro National Park | 🇺🇸 United States | |
| 7 | Yosemite National Park | 🇺🇸 United States | |
| 8 | Bahía de Loreto National Park | 🇲🇽 Mexico | |
| 9 | Joshua Tree National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Las Vegas | 🇺🇸 United States | |
| 2 | Torreón | 🇲🇽 México | |
| 3 | Mesa | 🇺🇸 United States | |
| 4 | San Diego | 🇺🇸 United States | |
| 5 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Carpenter Bee sighting in San Diego on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 314th most-seen of the 693 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 Western Carpenter Bee in San Diego on a given day, so our monthly data shows no clear season.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Western Carpenter Bee sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 5
Of the 5 cities where we can rate Western Carpenter Bee sightings, San Diego ranks 4th at under 5%. The best odds are in Las Vegas (United States, about 10%), Torreón (México, about 10%) and Mesa (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Western Carpenter Bee is recorded against all the insects logged in San Diego (19 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.
