Chrysolopus spectabilis
In 3 days ~20% in a week ~40%
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 Sydney on a given day, based on 137 verified sightings from GBIF citizen-science data. It is the 87th most-seen of the 742 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a Botany Bay Diamond Weevil in Sydney on a given day, against under 5% in March to October, 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.
Yes
Of the 3 cities where we can rate Botany Bay Diamond Weevil sightings, Sydney has the highest daily chance: about 10%. Next come Brisbane (Australia, under 5%) and Melbourne (Australia, under 5%).
GBIF citizen-science records
It is estimated from how often the Botany Bay Diamond Weevil is recorded against all the insects logged in Sydney (137 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.
