Mustard White

Pieris napi

Genus Pieris
Subfamily Whites
Family Whites and Sulpurs
All Massachusetts Species


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Mustard White

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Occurrence   Berkshire and Franklin County - resident
Abundance Uncommon to rare
Flight Period Mid-April to late September
Notes Watch for this and West Virginia White wherever toothwort (Dentaria) grows
Overwintering Pupa
More info Massachusetts Butterfly Atlas Website
More info Butterflies of Massachusetts Website
Mustard White is listed as a 'Threatened' species in Massachusetts. If you find specimens of this species, please take a photograph, note your location carefully, and use Massachusetts Division of Fisheries & Wildlife Vernal Pool & Rare Species reporting system to report your sighting.
More information on Mustard White from Massachusetts Division of Fisheries & Wildlife.

Mustard White - Pieris napi

Mustard White

Photo by Erik Nielsen - 5/4/2003
Berkshire County, MA

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Mustard White - Pieris napi

Mustard White

Photo © Alyce Mayo - May-03
Berkshire County, MA
Mating

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Mustard White - Pieris napi

Mustard White

Photo by Barbara Spencer - 9/12/2006
Berkshire County, MA
Summer Form

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Mustard White - Pieris napi

Mustard White

Photo by Barbara Spencer - 9/12/2006
Berkshire County, MA
Summer Form

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Mustard White - Pieris napi

Mustard White

Photo by Barbara Spencer - 5/10/2007
Berkshire County, MA
Mating

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Mustard White - Pieris napi

Mustard White

Photo by Frank Model - 5/9/2007
Berkshire County, MA
Mating
Ménage à trois

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Mustard White - Pieris napi

Mustard White

Photo by Frank Model - 4/20/2006
Berkshire County, MA
Spring Form

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Mustard White - Pieris napi

Mustard White

Photo by Frank Model - 4/20/2006
Berkshire County, MA
Spring Form

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Mustard White - Pieris napi

Mustard White

Photo by Frank Model - 7/8/2007
Berkshire County, MA
Summer Form

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Mustard White - Pieris napi

Mustard White

Photo by Frank Model - 7/8/2007
Berkshire County, MA
Summer Form

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