Dicerca divaricata
In 3 days ~10%
Dicerca divaricata, also known as the flatheaded hardwood borer, is a species of black coloured beetle from subfamily Chrysochroinae found in North America. It is 15–22 millimetres (0.59–0.87 in) long. The species is known for feeding on various maples such as Acer saccharum and Acer rubrum as well as Ulmus americana and Cercis species. The species fly in May and June. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Flat-Headed Hardwood Borer sighting in Toronto on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 1296th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Flat-Headed Hardwood Borer in Toronto on a given day, so our monthly data shows no clear season.
Only Toronto, in our data
Toronto is the only city on Wallace's Line with enough records to rate Flat-Headed Hardwood Borer sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Flat-Headed Hardwood Borer is recorded against all the insects logged in Toronto (7 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.
