Trogoxylon parallelipipedum
In 3 days ~10% in a week ~20%
Trogoxylon parallelipipedum, the velvety powderpost beetle, is a species of powderpost beetle in the family Bostrichidae. It is found in Australia, Europe and Northern Asia (excluding China), and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Velvety Powder-Post Beetle sighting in Dallas on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 811th most-seen of the 1412 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 Velvety Powder-Post Beetle in Dallas on a given day, against under 5% in August to June, the lowest months.
Only Dallas, in our data
Dallas is the only city on Wallace's Line with enough records to rate Velvety Powder-Post Beetle sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Bostrichidae
The closest relatives of the Velvety Powder-Post Beetle that you can see in Dallas (family Bostrichidae, Auger Beetles) are Red-Shouldered Bostrichid (about 10%) and Two-Horned Powder-Post Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Velvety Powder-Post Beetle is recorded against all the insects logged in Dallas (16 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.
