Acalymma trivittatum
In 3 days ~10% in a week ~20%
Acalymma trivittatum, the western striped cucumber beetle, is a species of leaf beetle in the family Chrysomelidae. It is found in Central America and North America. It is considered a key pest on crops in the Cucurbitaceae family. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Los Angeles | 🇺🇸 United States | |
| 3 | Mexico City | 🇲🇽 México | |
| 4 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Striped Cucumber Beetle sighting in Portland on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 316th 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 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Western Striped Cucumber Beetle in Portland on a given day, against under 5% in August to June, the lowest months. That is one of Portland's driest months, with about 10 mm of rain against 250 mm in December.
Yes
Of the 4 cities where we can rate Western Striped Cucumber Beetle sightings, Portland has the highest daily chance: under 5%. Next come Los Angeles (United States, under 5%) and Mexico City (México, under 5%).
Same family: Chrysomelidae
The closest relatives of the Western Striped Cucumber Beetle 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 Western Striped Cucumber Beetle is recorded against all the insects logged in Portland (11 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.
