Parapoynx badiusalis
In 3 days ~10% in a week ~20%
Parapoynx badiusalis, the chestnut-marked pondweed moth, is a moth in the family Crambidae. It was described by Francis Walker in 1859. It is found in North America, where it has been recorded from Illinois, Indiana, Iowa, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Nebraska, New Hampshire, North Dakota, Ohio, Oklahoma, Ontario, Pennsylvania, Quebec, Saskatchewan, Vermont and Wisconsin. The habitat consists of vegetated ponds, marshes and lakeshores.
The wingspan is about 20 mm. Adults have been recorded on wing from May to September. The larvae feed on Potamogeton species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Chestnut-Marked Pondweed Moth sighting in Montreal on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 749th most-seen of the 926 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Chestnut-Marked Pondweed Moth in Montreal on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Chestnut-Marked Pondweed Moth sightings, Montreal ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Minneapolis [Saint Paul] (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Chestnut-Marked Pondweed Moth is recorded against all the insects logged in Montreal (6 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.
