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Rhopaea magnicornis
In 3 days ~10% in a week ~20%
Rhopaea magnicornis, the brown cockchafer, is a species of beetle of the family Scarabaeidae. It is found in Australia (southern Queensland, northern New South Wales). Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Brown Cockchafer sighting in Sydney on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 558th most-seen of the 742 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Brown Cockchafer in Sydney on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Brown Cockchafer sightings, Sydney ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Brisbane (Australia, under 5%).
Same family: Scarabaeidae
The closest relatives of the Brown Cockchafer that you can see in Sydney (family Scarabaeidae, Scarabs) are Argentinian Scarab (about 20%), Fiddler Beetle (about 10%) and Cowboy Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown Cockchafer is recorded against all the insects logged in Sydney (8 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.
