"Metalmark Butterflies" -- Lange's Metalmark - Paw Talk - Pet Forums
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post #1 of 1 (permalink) Old 10-04-2002, 11:19 AM Thread Starter
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"Metalmark Butterflies" -- Lange's Metalmark



Lange's Metalmark
Apodemia mormo langei



Description
3/4-1 1/4" (19-32 mm). Above, inner part of wings russet-brown with bold, black-bordered, pearl-white squares; outer half of wings black with promiment white spotting. Below, forewing pale brown dotted with large white squares; hindwing with very large, puffed, white squares and polygons.

Endangered Status
The Lange's Metalmark, a subspecies of the Mormon Metalmark, is on the U.S. Endangered Species List. It is classified as endangered in California. The rise of San Francisco led to the downfall of this small reddish butterfly. Its habitat, a series of shifting sand dunes interspersed with buckwheat plants, was modified over the 20th century, as sand was removed for building and new plants moved in and stabilized the dunes. The buckwheat plants, on which Lange's Metalmark lays its eggs, did not seed well in the newly solid ground, and as they declined so did the butterfly. Antioch Dunes National Wildlife Refuge was established in 1980, and a program to return the dunes to their dynamic state was begun. Both the buckwheat plants and the metalmark have responded, and their numbers are on the rise.

Life Cycle
Adults emerge in late summer, live for about a week, and lay eggs on Naked Stemmed Buckwheat (Eriogonum nudum) plants. Caterpillars feed through winter and spring, pupate the following summer.

Habitat
Coastal sand dunes.

Range
San Francisco Bay area, California.

Source

Stephanie

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