Diplonychus rusticus
In 3 days ~10%
Diplonychus rusticus is an insect native in the Philippines, India, and Australia commonly known as "water bug". This insect lives in shallow waters and feed on aquatic insects including mosquito larvae. In a study conducted by Dr. Pio Javier of the University of the Philippines in Los Baños Laguna, Philippines, water bugs could be an effective biological control agent for dengue-carrying mosquitoes. He found out that water bug can consume 86-99 full grown mosquito larvae per day, it is tolerable to chlorinated waters and can reproduce easily. With that, water bug can be distributed in all mosquito habitats such as used tires, water containers, and other mosquito breeding sites.
Females prefer males that carry eggs on their back. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Diplonychus rusticus sighting in Singapore on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 960th most-seen of the 1045 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Diplonychus rusticus in Singapore on a given day, so our monthly data shows no clear season.
Only Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Diplonychus rusticus sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Hemiptera
The closest relatives of the Diplonychus rusticus that you can see in Singapore (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Orange Sharpshooter (about 20%), Cosmolestes picticeps (about 20%) and Giant Shield Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Diplonychus rusticus is recorded against all the insects logged in Singapore (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.
