Photo by Melody

Holly Blue Butterfly (Celastrina argiolus)

Order: Lepidoptera (le-pid-OP-ter-a) (Info)
Family: Lycaenidae
Genus: Celastrina
Species: argiolus


1 positive
No neutrals
No negatives


This bug has been reportedly found in the following regions:

Halifax, Massachusetts

By wallaby1
Thumbnail #1 of Holly Blue Butterfly (Celastrina argiolus) by wallaby1

By wallaby1

Thumbnail #2 of Holly Blue Butterfly (Celastrina argiolus) by wallaby1

By kennedyh

Thumbnail #3 of Holly Blue Butterfly (Celastrina argiolus) by kennedyh

Member Notes:

Positive maccionoadha On May 28, 2008, maccionoadha from Halifax, MA
(Zone 6a) wrote:

aka Lycaenopsis argiolus. Another common name is Spring Azure.

Wing span is 20-30 mm. They have 2 generations a year, with the spring being are smaller size.

Male: wings are a pale sky-blue with checkered fringe. The underside of the wing is a brow-gray and the spring generation also has small darkish spots. Later generations are paler with smaller spots.

Female: top side of fore wings have a darkish gray front and margins with a blue area that fades to white. Hind wings pale blue-gray with dark spots on margins.

Caterpillars: Slug-like and feed on many different flowers and flower buds, including Dogwood, Milkweed, Spirea, Viburnum, and Willow. They like a rich moist woodland habitat and range from the east to west coast, from the subarctic to Mexico and sometimes Florida. They take flight in May-midsummer.

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