Crioceris duodecimpunctata
In 3 days ~10% in a week ~20%
Crioceris duodecimpunctata or the spotted asparagus beetle is a species of shining leaf beetle belonging to the family Chrysomelidae, subfamily Criocerinae. The length of beetles varies from 5 to 6.5 millimeters. The colour of head, pronotum and elytra is reddish orange, while the scutellum is black. On the elytra there are twelve black dots.
It feeds on Cucurbitaceae and asparagus species. The larvae feed only on the asparagus berries, being the second most important pest of this plant, while adults prefer tender shoots and leaves. They are found in the whole Palearctic realm, including the British Isles. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Spotted Asparagus Beetle sighting in Portland on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 259th 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 and August
In those months about 10% of wildlife watchers report a Spotted Asparagus Beetle in Portland on a given day, against under 5% in September to June, the lowest months. Those are among Portland's driest months, with about 15 mm of rain a month against 250 mm in December.
5th of 9
Of the 9 cities where we can rate Spotted Asparagus Beetle sightings, Portland ranks 5th at under 5%. The best odds are in Barcelona (Spain, about 10%), Kyiv (Ukraine, under 5%) and Berlin (Germany, under 5%).
Same family: Chrysomelidae
The closest relatives of the Spotted Asparagus 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 Spotted Asparagus Beetle is recorded against all the insects logged in Portland (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.
