Sweet Potato Weevil

Sweet Potato Weevil

Cylas formicarius

Daily sighting probability <5% · Rare
at Singapore

In 3 days ~10%

5 Verified sightings at Singapore
January Best month
☀️🌙 Day & Night When it's spotted

About the Sweet Potato Weevil

Cylas formicarius, the sweet potato weevil, is a species of sweet potato weevil in the beetle family Brentidae. It is found in Africa, Australia, the Caribbean, Europe, Northern Asia (excluding China), Central America, North America, Oceania, South America, Southern Asia, the Pacific Ocean, and temperate Asia. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Fuzhou 🇨🇳 China
~10%
2 Taichung 🇹🇼 Taiwan
~10%
3 Zhuhai [Macau] 🇨🇳 China
~10%
4 Hyderabad 🇮🇳 India
<5%
5 Taipei 🇹🇼 Taiwan
<5%
6 Guangzhou 🇨🇳 China
<5%
7 Houston 🇺🇸 United States
<5%
8 Brisbane 🇦🇺 Australia
<5%
9 Dallas 🇺🇸 United States
<5%
10 Austin 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Sweet Potato Weevil in Singapore?

Rare

Under 5% of wildlife watchers report a Sweet Potato Weevil sighting in Singapore on a given day, based on 5 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.

When is the best time to see a Sweet Potato Weevil in Singapore?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Sweet Potato Weevil in Singapore on a given day, so our monthly data shows no clear season.

What time of day is best to see a Sweet Potato Weevil?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Sweet Potato Weevil sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.

Is Singapore the best place to see a Sweet Potato Weevil?

12th of 12

Of the 12 cities where we can rate Sweet Potato Weevil sightings, Singapore ranks 12th at under 5%. The best odds are in Fuzhou (China, about 10%), Taichung (Taiwan, about 10%) and Zhuhai [Macau] (China, about 10%).

Where does the Sweet Potato Weevil sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Sweet Potato Weevil is recorded against all the insects logged in Singapore (5 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.

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