Hawaiian Beet Webworm Moth

Spoladea recurvalis · Order: Lepidoptera · Family: Crambidae

Also called: Beet Webworm Moth, Maize Moth

Damages trees, gardens or crops. It can damage a range of crops such as spinach, beet, cotton, maize and soybean.

Source: Wikipedia

Hawaiian Beet Webworm Moth
Photo: Hsu Hong Lin, CC BY

The Hawaiian beet webworm moth has a wingspan of about 22 to 24 mm. It is found worldwide, especially in tropical regions, and the adults are on the wing from May to September depending on location. Its larvae feed on several important crops, making it a potential agricultural pest.

Source: Wikipedia

Size

The moth’s wingspan measures between 22 and 24 mm.

Source: Wikipedia

Where it lives

It occurs worldwide, with a strong presence in tropical areas.

Source: Wikipedia

Life cycle

Adults are active from May through September, varying by location.

Source: Wikipedia

When you see it

The flight period spans May to September, depending on where they are found.

Source: Wikipedia

Where it comes from

Its distribution is worldwide, primarily in the tropics.

Source: Wikipedia

Where it is found in the US

Recorded in 44 of 51 states and DC. Most records: Texas, Florida, Virginia, North Carolina, Louisiana, Oklahoma, Massachusetts, Arizona.

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

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

When are the adults active?

Adults are on the wing from May to September, depending on the region.

Source: Wikipedia

How big are these moths?

They have a wingspan of about 22 to 24 mm.

Source: Wikipedia

Same family (Crambidae)

Sources

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

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

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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.