Cassida nebulosa
In 3 days ~20% in a week ~50%
Cassida nebulosa is a tortoise beetle, a species of leaf beetle (family Chrysomelidae), belonging to the subfamily Cassidinae. It feeds on several plants of the family Chenopodiaceae; particularly on beet Beta vulgaris, on Chenopodium album, on C. glaucum and on Atriplex hortensis.
It is widely distributed in most of Europe, Russia, East Asia including China, Korea and Japan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Cassida nebulosa sighting in Fertő-Hanság National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 116th most-seen of the 243 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Cassida nebulosa in Fertő-Hanság National Park on a given day, against under 5% in July to May, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Cassida nebulosa sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 3 parks where we can rate Cassida nebulosa sightings, Fertő-Hanság National Park has the highest daily chance: about 10%. Next come Cévennes National Park (France, under 5%) and Pyrénées National Park (France, under 5%).
Same family: Chrysomelidae
The closest relatives of the Cassida nebulosa that you can see in Fertő-Hanság National Park (family Chrysomelidae, Leaf Beetles) are Willow Clytra (about 10%), Colorado Potato Beetle (about 10%) and Lachnaia sexpunctata (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cassida nebulosa is recorded against all the insects logged in Fertő-Hanság National Park (11 verified sightings from 2019 to 2026), 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.
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