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Butterflies of North America -- Apodemia mejicanus

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Butterflies of North America

Sonoran Metalmark (Apodemia mejicanus)
JPG -- species photo

Sonoran Metalmark (Apodemia mejicanus [Behr])

Wing span: 7/8 - 1 5/16 inches (2.2 - 3.3 cm).

Identification: Upperside orange-brown to black, checkered with black and white spots. Forewing outer portion black with white spots and inner portion with yellow-orange to brick-red patch. Underside gray with white spots to red-orange or yellow-orange with black areas and white spots.

Life history: Males perch in hillside hollows or flats to watch for females. Eggs are laid in groups of 2-4 on lower leaves of host plant, or singly on other parts of plant. Caterpillars rest during the day in shelters of leaves tied together with silk, emerging at night to feed. Young caterpillars feed on leaves, older caterpillars eat leaves and stems. Young caterpillars hibernate inside plant parts such as the dilated stems of E. inflatum.

Flight: Mid- February to mid-November (2-3 flights).

Caterpillar hosts: Various wild buckwheats (Eriogonum), including Inflated Buckwheat, Wright's Buckwheat, others, and possibly Kramerias.

Adult food: Nectar from flowers of Eriogonum and other plants, especially yellow-flowered composites.

Habitat: Various arid lands including rocky hills and alluvial fans and flats, oak grassland.

Range: Southeastern California, southern Nevada, Arizona, and southwestern New Mexico south to Baja California and mainland Mexico.

Conservation: Sufficient populations, but some may be threatened by invasive alien weeds such as cheatgrass.

The Nature Conservancy Global Rank: Probably G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

References:

Bailowitz, R. A., and J. P. Brock. 1991. Butterflies of southeastern Arizona. 
     Sonoran Arthropod Studies, Inc., Tucson, Arizona. 342 pages.

Emmel, T.C. and J.F. Emmel. 1973. The butterflies of southern California. Natural 
     History Museum of Los Angeles County, Los Angeles. 148 pages.

Garth, J.S. and J.W. Tilden. 1986.California Butterflies. University of California 
     Press, Berkeley and Los Angeles. 246 pp, 24 plates.

Opler, P.A. 1999. A field guide to western butterflies.  Houghton-Mifflin Co., 
      Boston, Mass. 540 pages, 44 color plates.

Opler, P., and J. A. Powell. 1961. Taxonomic and distributional studies on the 
     western components of the Apodemia mormo complex (Riodinidae). Journal of 
     the Lepidopterists' Society 15(3): 145-171.

Scott, J. A. 1986. The butterflies of North America. Stanford University Press, 
     Stanford, Calif. 583 pages, 64 color plates.

Stanford, R. E. and P. A. Opler. 1993. Atlas of western USA butterflies including 
     adjacent parts of Canada and Mexico. Denver and Fort Collins, CO. 

Author: Paul A. Opler

Sonoran Metalmark (Apodemia mejicanus)
distribution map
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