Bruchus pisorum
In 3 days ~10% in a week ~30%
Bruchus pisorum, known generally as pea weevil, is a species of leaf beetle in the family Chrysomelidae. Other common names include the pea beetle and pea seed beetle. It is found in Europe and Northern Asia (excluding China), North America, and temperate Asia.
The genus Bruchus was originally placed within the family Curculionidae (weevils) because of elongated facial parts and four segmental tarsi. This is probably why it remains universally, though incorrectly, known as the pea weevil.
B. pisorum is a short, stout beetle with an oval body about 5mm in length. It ranges in color from soft grey to black with patches of white scales that form white spots on the elytra. The elytra are shorter than the abdomen, exposing large white patches as its base... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Pea Weevil sighting in Portland on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 192nd most-seen of the 507 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report a Pea Weevil in Portland on a given day, against under 5% in July to April, the lowest months. Those are among Portland's driest months, with about 65 mm of rain a month against 250 mm in December.
Only Portland, in our data
Portland is the only city on Wallace's Line with enough records to rate Pea Weevil sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Chrysomelidae
The closest relatives of the Pea Weevil that you can see in Portland (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%), Coreopsis Beetle (about 10%) and Saint John's Wort Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pea Weevil is recorded against all the insects logged in Portland (27 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.
