Curve-lined Cydosia

Cydosia nobilitella · Order: Lepidoptera · Family: Noctuidae

Also called: Regal Cydosia

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Curve-lined Cydosia
Photo: Eridan Xharahi, CC BY

The adult moth has a wingspan of about 20 to 25 mm. It occurs from southern Florida down through Argentina and is also present in the Antilles. The caterpillars have been recorded feeding on the plant Spigelia anthelmia.

Source: Wikipedia

Size

Wingspan ranges from 20 to 25 mm.

Source: Wikipedia

What it eats

Larvae feed on Spigelia anthelmia.

Source: Wikipedia

Where it is found in the US

Recorded in 2 of 51 states and DC. Most records: Florida, Texas.

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

Curve-lined Cydosia photo 2
Photo: Scott Allen Davis, CC BY
Curve-lined Cydosia photo 3
Photo: Josiah Londerée, CC BY
Curve-lined Cydosia photo 4
Photo: Judy Gallagher, CC BY-SA
Curve-lined Cydosia photo 5
Photo: iNaturalist user, CC0

Questions people ask

How big is this moth?

Its wingspan is about 20 to 25 mm.

Source: Wikipedia

Where is Curve-lined Cydosia found?

It lives from southern Florida down to Argentina and also in the Antilles.

Source: Wikipedia

Same family (Noctuidae)

Ipsilon Dart MothIpsilon Dart MothAgrotis ipsilonDamages trees, gardens or cropsFall Armyworm MothFall Armyworm MothSpodoptera frugiperdaDamages trees, gardens or cropsArmy Cutworm MothArmy Cutworm MothEuxoa auxiliarisDamages trees, gardens or cropsLarge Yellow UnderwingLarge Yellow UnderwingNoctua pronubaDamages trees, gardens or cropsSilver ΥSilver ΥAutographa gammaAmerican DaggerAmerican DaggerAcronicta americanaCan irritate skin

Sources

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

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

Text written 2026-10-28 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-28.

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.