Trichocnemis spiculatus
In 3 days ~30% in a week ~50%
Trichocnemis spiculatus is a species of wood boring beetle. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States | |
| 2 | Portland | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Spined Woodborer sighting in Yosemite National Park on a given day, based on 29 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 57th most-seen of the 227 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Spined Woodborer in Yosemite National Park on a given day, against under 5% in September to May, the lowest months. That is one of Yosemite National Park's driest months, with about 25 mm of rain against 220 mm in January.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Spined Woodborer sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 parks where we can rate Spined Woodborer sightings, Yosemite National Park has the highest daily chance: about 10%. Next come Sequoia and Kings Canyon National Parks (United States, about 10%).
Same family: Cerambycidae
The closest relatives of the Spined Woodborer that you can see in Yosemite National Park (family Cerambycidae, Longhorn Beetles) are White-Spotted Sawyer (about 10%), Dimorphic Flower Longhorn Beetle (about 10%) and Monochamus obtusus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Spined Woodborer is recorded against all the insects logged in Yosemite National Park (29 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.
