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Boisduval's Blue Caterpillar Plebejus icarioides (Icaricia icarioides)


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Boisduval's Blue caterpillar
credit: US Fish and Wildlife Service

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Family: Lycaenidae, Gossamer-wing Butterflies view all from this family

Description Boisduval's Blue (Aricia icarioides) is a butterfly of the Lycaenidae family found in North America.

A. icarioides has been classified in at least four different genera since it was named by Boisduval in 1852.

The caterpillar is green and covered with short white hair with numerous diagonal marking on its sides; its Chrysalis is about 5/16" (8 mm) long and is green with red-brown on abdomen.

Larvae feed on species of lupines (Lupinus).

Dimensions Caterpillar, to 3/8" (10 mm).

Habitat Canyons & caves, Freshwater swamps, marshes & bogs, Shorelines & salt marshes, Meadows & fields, Scrub, shrub & brushlands, Grasslands & prairies, Alpine & subalpine habitats.

Range California, Western Canada, Rocky Mountains, Plains, Northwest, Southwest.