Tragidion coquus
In 3 days ~10% in a week ~20%
Tragidion coquus is a species of longhorn beetle in the family Cerambycidae. It is found in North America. Individuals of this species have a black head and pronotum, with highly variable amounts of orange on the elytra, ranging from almost completely orange to black.
Tragidion coquus was described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. The specific epithet is sometimes misspelled as "coquum", but it is a noun and must retain the spelling "coquus" under the ICZN. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Denver | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Tragidion coquus sighting in Denver on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 274th most-seen of the 461 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.
August
In that month about 10% of wildlife watchers report a Tragidion coquus in Denver on a given day, against under 5% in September to July, the lowest months. That is one of Denver's wettest months, with about 50 mm of rain against 15 mm in January.
Only Denver, in our data
Denver is the only city on Wallace's Line with enough records to rate Tragidion coquus sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Tragidion coquus that you can see in Denver (family Cerambycidae, Longhorn Beetles) are Red-Femured Milkweed Borer (about 20%), Sutured Longhorn Beetle (about 10%) and Locust Borer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tragidion coquus is recorded against all the insects logged in Denver (12 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.
