Clandestine Dart

Spaelotis clandestina · Order: Lepidoptera · Family: Noctuidae

Also called: W-marked Cutworm, Clandestine Dart Moth

Damages trees, gardens or crops. The larvae damage a wide range of garden, orchard and forest plants.

Source: Wikipedia

Clandestine Dart
Photo: Laura Gaudette, CC BY

The clandestine dart moth has a wingspan of about 38 mm. Its larvae are pests on many trees, shrubs and herbaceous plants such as blueberries, maples, pines, beans, cabbage, corn, apples and strawberries. Adults fly from May through October across Canada, Alaska and much of the United States.

Source: Wikipedia

How to recognize it

It is a moth in the Noctuidae family, known as the clandestine dart or w-marked cutworm.

Source: Wikipedia

Size

The wingspan is roughly 38 mm.

Source: Wikipedia

What it eats

The caterpillars feed on many plants, including Vaccinium (blueberries), Acer (maples), Pinus (pines), Fabaceae (beans), Brassica oleracea (cabbage), Zea mays (corn), Malus (apples) and Fragaria (strawberries).

Source: Wikipedia

Life cycle

Adults are on the wing from May to October.

Source: Wikipedia

When you see it

The flight period spans May through October.

Source: Wikipedia

Where it comes from

Its range includes all of Canada, southern Alaska and large parts of the United States.

Source: Wikipedia

Where it is found in the US

Recorded in 37 of 51 states and DC. Most records: Montana, Michigan, Idaho, Minnesota, Massachusetts, Alaska, Colorado, Vermont.

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

Source: GBIF

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

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

What plants does the clandestine dart damage?

Its larvae feed on blueberries, maples, pines, beans, cabbage, corn, apples and strawberries, among others.

Source: Wikipedia

When are adult clandestine darts active?

Adults fly from May through October.

Source: Wikipedia

Where is the clandestine dart found?

It lives across Canada, southern Alaska and much of the United States, from the east coast to the Rockies and down to Arizona.

Source: Wikipedia

How big is the clandestine dart?

Its wingspan is about 38 mm.

Source: Wikipedia

Same family (Noctuidae)

Sources

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

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