Trichocnemis spiculatus
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Spined Woodborer sighting in San Francisco on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 234th most-seen of the 737 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.
July
In that month about 10% of wildlife watchers report a Spined Woodborer in San Francisco on a given day, against under 5% in August to June, the lowest months. That is one of San Francisco's driest months, with almost no rain against 110 mm in December.
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 cities where we can rate Spined Woodborer sightings, San Francisco has the highest daily chance: under 5%. Next come Portland (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Spined Woodborer is recorded against all the insects logged in San Francisco (47 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.
