Watermilfoil Leafcutter Moth

Watermilfoil Leafcutter Moth

Parapoynx allionealis

Daily sighting probability <5% · Rare
at Houston

In 3 days ~10%

5 Verified sightings at Houston
122 In all 4 parks From 2019 to 2026
September Best month
🌙 Nocturnal When it's spotted

About the Watermilfoil Leafcutter Moth

Parapoynx allionealis, the watermilfoil leafcutter 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 Alabama, Florida, Georgia, Indiana, Louisiana, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, New Brunswick, New Hampshire, New Jersey, New York, North Carolina, Nova Scotia, Ohio, Oklahoma, Ontario, Quebec, South Carolina, Tennessee and Texas.

Adults have been recorded on wing year round in the southern part of the range. The larvae feed on various aquatic plants, including Nymphaea odorata, Potamogeton natans, Potamogeton pusillus, Myriophyllum spicatum, Myriophyllum heterophyllum, Hydrochtoa caroliniensis, Eleocharis vivipara, Utricularia inflata and Salvinia rotundifolia. They live in a portable case made of plant material. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Cypress National Preserve 🇺🇸 United States
~20%
2 Everglades National Park 🇺🇸 United States
~10%
3 Padre Island National Seashore 🇺🇸 United States
~10%
4 Acadia National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Miami 🇺🇸 United States
<5%
2 Montreal 🇨🇦 Canada
<5%
3 Houston 🇺🇸 United States
<5%
4 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Watermilfoil Leafcutter Moth in Houston?

Rare

Under 5% of wildlife watchers report a Watermilfoil Leafcutter Moth sighting in Houston on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 978th most-seen of the 1057 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 Watermilfoil Leafcutter Moth in Houston?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Watermilfoil Leafcutter Moth in Houston on a given day, so our monthly data shows no clear season.

What time of day is best to see a Watermilfoil Leafcutter Moth?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most Watermilfoil Leafcutter Moth sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Is Houston the best place to see a Watermilfoil Leafcutter Moth?

Among the best

Of the 4 cities where we can rate Watermilfoil Leafcutter Moth sightings, Houston ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Miami (United States, under 5%) and Montreal (Canada, under 5%).

Where does the Watermilfoil Leafcutter Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Watermilfoil Leafcutter Moth is recorded against all the insects logged in Houston (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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