Parapoynx stagnalis
In 3 days ~20% in a week ~50%
Parapoynx stagnalis, the rice case bearer or rice caseworm, is a species of moth in the family Crambidae. It has a wide distribution and is found in India, Sri Lanka, South-East Asia, South Africa, South America, southern Europe (Spain and Greece), Russia and Australia (the Northern Territory and Queensland).
The life cycle is completed in about 35–40 days. The length of the forewings is 15 mm. Adult has whitish wings with pale brown wavy markings. There are two black comma-shaped marks on each forewing. Male can be identified by narrow and uniform abdomen, whereas female abdomen is widest at the middle but tapering posteriorly. Female usually lay 150 eggs and first instar larvae emerge after a week. Final larva emerge after 20 days, and reaches its maximum length of 10-12mm. The moth has six larval instars. Due to branched tubular gills, caterpillars can respire in aquatic media. Therefore, instar can disperse through water. Pupation occurs when the pupal case is attached to the leaf sheath above the water level. After a week of pupation, adult emerges.
As its common name implies, rice caseworm is one of the major pests of rice throughout the world.... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 2 | Daintree National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Rice Case Bearer sighting in Daintree National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 402nd most-seen of the 856 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Rice Case Bearer in Daintree National Park on a given day, against under 5% in July to January, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Rice Case Bearer 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.
Among the best
Of the 2 parks where we can rate Rice Case Bearer sightings, Daintree National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Sinharaja Forest Reserve (Sri Lanka, about 10%).
Same genus: Parapoynx
The closest relatives of the Rice Case Bearer that you can see in Daintree National Park (genus Parapoynx) are Small Ringed China-Mark (about 20%), Hydrilla Leafcutter Moth (about 10%) and Two-Spotted China Mark (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rice Case Bearer is recorded against all the insects logged in Daintree National Park (10 verified sightings from 2019 to 2026), 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.
