Baltimore checkerspot
Black wings checked with cream and orange identify a wet-meadow butterfly whose official status contrasts with its rarity in Maryland.
Artwork inspired by Joyce J. Scott
The Baltimore checkerspot’s patterned wings are an unusually fitting state emblem: its name recalls the colors associated with Lord Baltimore. Yet recognition has not made the insect secure. Maryland colonies depend on open, wet meadow conditions and appropriate caterpillar food plants, a combination easily lost when shrubs spread, deer browse heavily, or water conditions change.
White turtlehead is central to the butterfly’s Maryland life cycle. Young caterpillars feed together in silk webs before passing the winter and completing development the following spring. Adults appear for a comparatively brief summer flight, so an apparently suitable meadow can seem empty for most of the year. Observing from a path protects the plants and immature stages that make future flights possible.
- Maryland host
- White turtlehead
- Young larvae
- Communal silk webs
- State symbol
- Official insect since 1973
Quick guide
- Compare markings
- Look for cream checks and orange margins on dark wings.
- Protect the meadow
- Observe from the path without entering host-plant patches.
Find the pattern without disturbing the meadow
- Compare look-alikes
- Harris’s and silvery checkerspots are smaller; check the overall dark pattern.
- Read the habitat
- Stream-fed open wet meadows matter more than a generic flower bed.
- Wait for a perch
- A settled adult reveals the wing pattern better than a chase.
- Keep colonies private
- Do not publish precise locations of vulnerable breeding patches.
Good to know
Maryland’s state insect is locally imperiled. Its name and official status do not mean it is a common Baltimore garden butterfly.
Notice these
- Cream wing checks
- Orange marginal spots
- Dark ground color