Chrysochus asclepiadeus
In 3 days ~10% in a week ~30%
Chrysochus asclepiadeus (or Eumolpus asclepiadeus) is a member of the leaf beetle subfamily Eumolpinae. It is considered the type species of the genus Chrysochus, though it has sometimes been placed within the genus Eumolpus. It is the only species of Chrysochus distributed in the western Palaearctic. It is mainly found in Europe, though it is also known from Kazakhstan and Turkey in Asia.
The species was first described by Peter Simon Pallas, who gave it the scientific name Chrysomela asclepiadea in 1773. The species epithet, asclepiadea (or asclepiadeus), is named after the milkweed genus Asclepias, one of the species' food plants. The species was later twice described again under two separate names: Guillaume-Antoine Olivier named it Cryptocephalus cyaneus in 1791 (from the Latin cyaneus, meaning "dark blue"), while Johan Christian Fabricius named it Chrysomela praetiosa in 1792. The latter was sometimes spelled "pretiosa", derived from the Latin pretiosus ("valuable, precious").
In 1798, the genus Eumolpus was first established in Johann Karl Wilhelm Illiger's Verzeichniß der Käfer Preußens, including C. praetiosa as well as other species. Fabricius also... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 2 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine |
Rare
Under 5% of wildlife watchers report a Chrysochus asclepiadeus sighting in Kyiv on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 374th most-seen of the 753 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.
June and July
In those months about 10% of wildlife watchers report a Chrysochus asclepiadeus in Kyiv on a given day, against under 5% in August to May, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Chrysochus asclepiadeus sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Kyiv, in our data
Kyiv is the only city on Wallace's Line with enough records to rate Chrysochus asclepiadeus sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Chrysomelidae
The closest relatives of the Chrysochus asclepiadeus that you can see in Kyiv (family Chrysomelidae, Leaf Beetles) are Knotweed Leaf Beetle (about 10%), Willow Clytra (about 10%) and Violet Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chrysochus asclepiadeus is recorded against all the insects logged in Kyiv (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.
