Eoparargyractis plevie

Eoparargyractis plevie · Order: Lepidoptera · Family: Crambidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Eoparargyractis plevie
Photo: Ken-ichi Ueda, CC BY

Full-grown larvae grow to about 11 mm long and have a yellow head. The larvae live in water, pupate in a cocoon on a leaf at the base of a rosette, and spend the winter as larvae. Adults are on the wing from April through October and are found across many parts of North America, including several U.S. states and Canadian provinces.

Source: Wikipedia

How to recognize it

The larvae have a yellow head.

Source: Wikipedia

Size

Full-grown larvae reach a length of about 11 mm.

Source: Wikipedia

Where it lives

The larvae are aquatic.

Source: Wikipedia

Life cycle

The species overwinters in the larval stage.

Source: Wikipedia

Where it is found in the US

Recorded in 14 of 51 states and DC. Most records: Massachusetts, Vermont, Maine, New Hampshire, Pennsylvania, Virginia, South Carolina, New York.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Eoparargyractis plevie photo 2
Photo: Nick Block, CC BY
Eoparargyractis plevie photo 3
Photo: Ken-ichi Ueda, CC BY
Eoparargyractis plevie photo 4
Photo: Cam Fox, CC BY
Eoparargyractis plevie photo 5
Photo: northerly, CC BY

Questions people ask

When are adult Eoparargyractis plevie seen?

Adults are active from April through October.

Source: Wikipedia

Where is Eoparargyractis plevie found?

It occurs in North America, including states such as Florida, Maine, Massachusetts, New Hampshire, New York, South Carolina and provinces like Nova Scotia and Quebec.

Source: Wikipedia

What do the larvae look like?

Full-grown larvae are about 11 mm long and have a yellow head.

Source: Wikipedia

How do the larvae develop?

They live in water, pupate in a cocoon on a leaf at the base of a rosette, and spend the winter as larvae.

Source: Wikipedia

Same family (Crambidae)

Box Tree MothBox Tree MothCydalima perspectalisDamages trees, gardens or cropsCelery Leaftier MothCelery Leaftier MothUdea rubigalisElegant Grass-veneerElegant Grass-veneerMicrocrambus elegansHawaiian Beet Webworm MothHawaiian Beet Webworm MothSpoladea recurvalisDamages trees, gardens or cropsGarden Grass-veneerGarden Grass-veneerChrysoteuchia culmellaDamages trees, gardens or cropsBluegrass Webworm MothBluegrass Webworm MothParapediasia teterrellusDamages trees, gardens or crops

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Eoparargyractis_plevie

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.