Diamesus osculans
In 3 days ~10% in a week ~20%
Diamesus osculans, is a species of carrion beetle found in the Indo-Malayan Realm and is known from India, Sri Lanka, Indonesia, Philippines, Laos, China, and Australia. It is the largest species carrion beetle in the subfamily Silphinae which is commonly found on decaying corpse with forensic value. Adults can be easily attracted by light trap and animal remains.
In 2020, the complete mitochondrial genome of the species was assembled. It comprised with 19,398 base pairs in length with a total of 22 tRNA genes, 2 rRNA, and 13 protein-coding genes (PCG). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Daintree National Park | 🇦🇺 Australia | |
| 3 | Springbrook National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Diamesus osculans sighting in Singapore on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 847th most-seen of the 1045 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.
January
In that month about 10% of wildlife watchers report a Diamesus osculans in Singapore on a given day, against under 5% in February to December, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Diamesus osculans sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Diamesus osculans sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Coleoptera
The closest relatives of the Diamesus osculans that you can see in Singapore (order Coleoptera, Beetles) are Golden-Spotted Tiger Beetle (about 10%), Metapocyrtus adspersus (about 10%) and Lebbek Borer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Diamesus osculans is recorded against all the insects logged in Singapore (11 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.
