Sitophilus oryzae
In 3 days ~20% in a week ~40%
The rice weevil (Sitophilus oryzae) is a stored product pest which attacks seeds of several crops, including wheat, rice, and maize. The adults are usually between 3–4.6 millimetres (0.12–0.18 in) long, with a long snout. The body color appears to be brown/black, but on close examination, four orange/red spots are arranged in a cross on the wing covers. It is easily confused with the similar looking maize weevil. The maize weevil is typically somewhat larger than the rice weevil, but rice weevils as large as the largest maize weevils and maize weevils nearly as small as the smallest rice weevils have been found. Some external features can be used to differentiate the vast majority of adults, but the only reliable features are on the genitalia (see table below). Both species can hybridize. The genitalic structure of hybrids is unknown.
The larvae are humpbacked and legless with a white to creamy white color. The head is small and tan. Adult rice weevils are able to fly, and can live for up to two years. Females lay 2–6 eggs per day and up to 300 over their lifetime. The female uses strong mandibles to chew a hole into a grain kernel after which she deposits... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zhuhai [Macau] | 🇨🇳 China | |
| 2 | Hong Kong | 🇨🇳 China | |
| 3 | Singapore | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Rice Weevil sighting in Zhuhai [Macau] on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 92nd most-seen of the 152 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.
August
In that month about 20% of wildlife watchers report a Rice Weevil in Zhuhai [Macau] on a given day, against under 5% in June–July and September–February, the lowest months. That is one of Zhuhai [Macau]'s wettest months, with about 230 mm of rain against 20 mm in December.
Yes
Of the 3 cities where we can rate Rice Weevil sightings, Zhuhai [Macau] has the highest daily chance: about 10%. Next come Hong Kong (China, under 5%) and Singapore (Singapore, under 5%).
Same order: Coleoptera
The closest relatives of the Rice Weevil that you can see in Zhuhai [Macau] (order Coleoptera, Beetles) are Anomala rubripes (about 20%), Six-Spotted Zigzag Ladybird (about 20%) and Tobacco Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rice Weevil is recorded against all the insects logged in Zhuhai [Macau] (7 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.
