Chrysolopus spectabilis
In 3 days ~10% in a week ~30%
Chrysolopus spectabilis (common names include Botany Bay diamond weevil, Botany Bay diamond beetle and sapphire weevil) is a species of weevil found in south-eastern Australia. It was discovered during James Cook's first voyage, and became one of the first insects to be described from Australia. The weevil measures up to 25 mm (1.0 in) long and includes distinctive metallic green and black scales. It feeds only on 28 species of the plant genus Acacia.
Chrysolopus spectabilis was first described in 1775 by the Danish entomologist Johan Christian Fabricius, in his work Systema Entomologiae, making it one of the first insects to be described from Australia. Fabricius named the species Curculio spectabilis, where the specific epithet spectabilis translates as "remarkable" or "admirable". Fabricius would have had ample opportunity on visits to London in the previous years to examine the insect collections from Cook's expeditions. Fabricius' species was transferred in 1817 by Ernst Friedrich Germar to the genus Chrysolopus, and so reached its current scientific name. Since then, other species have been added to the genus, which now contains 11 species, all native to Oceania... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal National Park | 🇦🇺 Australia | |
| 2 | Booderee National Park | 🇦🇺 Australia | |
| 3 | Flinders Chase | 🇦🇺 Australia | |
| 4 | Grampians National Park | 🇦🇺 Australia | |
| 5 | Blue Mountains National Park | 🇦🇺 Australia | |
| 6 | Kosciuszko National Park | 🇦🇺 Australia | |
| 7 | Lamington National Park | 🇦🇺 Australia | |
| 8 | Springbrook National Park | 🇦🇺 Australia | |
| 9 | Great Otway National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Botany Bay Diamond Weevil sighting in Great Otway National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 331st most-seen of the 418 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.
March, May and December–January
In those months about 10% of wildlife watchers report a Botany Bay Diamond Weevil in Great Otway National Park on a given day, against under 5% in February, April and June–November, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Botany Bay Diamond Weevil sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
9th of 9
Of the 9 parks where we can rate Botany Bay Diamond Weevil sightings, Great Otway National Park ranks 9th at about 10%. The best odds are in Royal National Park (Australia, about 30%), Booderee National Park (Australia, about 20%) and Flinders Chase (Australia, about 20%).
Same family: Curculionidae
The closest relatives of the Botany Bay Diamond Weevil that you can see in Great Otway National Park (family Curculionidae, True Weevils) are Broad-Back Weevil (about 10%), Nodding Thistle Receptacle Weevil (about 10%) and Psapharus ruficornis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Botany Bay Diamond Weevil is recorded against all the insects logged in Great Otway National Park (6 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.
