Xylocopa tabaniformis
In 3 days ~20% in a week ~50%
Xylocopa tabaniformis, the horsefly-like carpenter bee or mountain carpenter bee is a species of carpenter bee in the family Apidae. It is found in Central America, North America, and South America. It is 12–18 millimetres (15⁄32–23⁄32 in) long and black. Males have yellow hair on the thorax.
Xylocopa tabaniformis tabaniformis Smith, 1854 Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico | |
| 2 | Zion National Park | 🇺🇸 United States | |
| 3 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 4 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 5 | Yosemite National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | Salt Lake City | 🇺🇸 United States | |
| 3 | Mexico City | 🇲🇽 México | |
| 4 | Toluca | 🇲🇽 México | |
| 5 | Austin | 🇺🇸 United States | |
| 6 | San Antonio | 🇺🇸 United States | |
| 7 | Houston | 🇺🇸 United States | |
| 8 | San Francisco | 🇺🇸 United States | |
| 9 | San Luis Potosí | 🇲🇽 México | |
| 10 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Horse-Fly Carpenter Bee sighting in San Francisco on a given day, based on 724 verified sightings from GBIF citizen-science data. It is the 38th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report a Horse-Fly Carpenter Bee in San Francisco on a given day, against under 5% in November to January, the lowest months.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Horse-Fly Carpenter Bee sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 15
Of the 15 cities where we can rate Horse-Fly Carpenter Bee sightings, San Francisco ranks 8th at about 10%. The best odds are in Sacramento (United States, about 50%), Salt Lake City (United States, about 20%) and Mexico City (México, about 20%).
GBIF citizen-science records
It is estimated from how often the Horse-Fly Carpenter Bee is recorded against all the insects logged in San Francisco (724 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.
