Category Archives: Butterflies

Checkerspot Caterpillar

This gallery contains 3 photos.

In April while Leonard and I were hiking the Wapama Falls Trail at Yosemite National Park (California), I noticed an interesting caterpillar. The caterpillar had black and white longitudinal markings and rows of short, black spines on an orange base. … Continue reading

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Migrating Tortoiseshells

In August while climbing Mount Lassen (Lassen Volcanic National Park CA) Leonard and I were surrounded by literally thousands of California tortoiseshells (Nymphalis californica). The butterflies were hitting us, landing on us, covering the snow and talusĀ  and filling the … Continue reading

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Painted Lady

The painted lady (Vanessa cardui) is one of the most widely spread butterflies in the world, found in all continents except Australia and Antarctica. An irruptive migrant (migrates independent of seasonal or geographic patterns), the painted lady is capable of … Continue reading

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“Weedy” Butterfly

While browsing Art Shapiro’s butterfly blog I encountered a new term – a “weedy” butterfly. Weedy organisms are those typically associated with habitats disturbed by human activities or dominated by non-native or invasive species. An example of a “weedy” butterfly … Continue reading

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Uncertain Taxonomy

A year ago lightning ignited the Cove Fire in the Modoc National Forest near Adin CA (Modoc County). About 31,000 acres were burned before the fire was contained. Since then Leonard and periodically return to a site along Forest Road … Continue reading

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Clodius Parnassian

This gallery contains 4 photos.

Last week Leonard and I saw many clodius parnassian (Parnassius clodius) butterflies at Crater Lake National Park in Oregon. These specimens were observed along the Castle Crest and Garfield Peak Trails. The wing patterns of clodius parnassians are quite variable. … Continue reading

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Boisduval’s Blue

This gallery contains 2 photos.

Boisduval’s blue (Plebejus icarioides) is a butterfly that ranges from British Columbia to Baja and east to the western edge of the Great Plains. It can be found in mountain meadows, forest openings and sagebrush areas, wherever there is a … Continue reading

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