''Pontia beckerii'', the Becker's white, Great Basin white, or sagebrush white, is a

butterfly Butterflies are winged insects from the lepidopteran superfamily Papilionoidea, characterized by large, often brightly coloured wings that often fold together when at rest, and a conspicuous, fluttering flight. The oldest butterfly fossi ...

in the family

Pieridae The Pieridae are a large family (biology), family of butterflies with about 76 genera containing about 1,100 species, mostly from Afrotropical realm, tropical Africa and Indomalayan realm, tropical Asia with some varieties in the more northern ...

. It is found in western North America from

Baja California Baja California, officially the Free and Sovereign State of Baja California, is a state in Mexico. It is the northwesternmost of the 32 federal entities of Mexico. Before becoming a state in 1952, the area was known as the North Territory of B ...

, Mexico to southern

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

, Canada.Becker's White
Butterflies of Canada It is mostly white with small black markings; females have more dark markings. The species is similar to other checkered whites such as, '' Pontia sisymbrii'', '' Pontia protodice'', and '' Pontia occidentalis''.Jim P. Brock and Kenn Kaufman (2003). ''Butterflies of North America''. Houghton Mifflin, New York, NY. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingsp ...

is 33 to 48 millimeters. The host plants are '' Isomeris arborea'', ''

Stanleya pinnata ''Stanleya pinnata'' is a species of flowering plant in the family Brassicaceae known as desert prince's-plume. It is a perennial herb or shrub native to North America. Distribution The plant is native to the western Great Plains and western Nor ...

'', ''

Brassica nigra ''Rhamphospermum nigrum'' (syns. ''Brassica nigra'' and ''Sinapis nigra''), black mustard, is an annual plant native to cooler regions of North Africa, temperate regions of Europe, and parts of Asia. It is cultivated for its dark-brown-to-black se ...

'', '' Descurainia pinnata'', ''

Sisymbrium altissimum ''Sisymbrium altissimum'' is a species of ''Sisymbrium''. The plant is native to the western part of the Mediterranean Basin and is widely naturalized throughout most of the world, including all of North America. After maturity it forms a tumble ...

'', ''

Sisymbrium linifolium ''Sisymbrium linifolium'', synonyms including ''Schoenocrambe linifolia'', is a species of flowering plant in the mustard family, known by the common names flaxleaf plainsmustard, skeleton mustard, and Salmon River plains-mustard. It is native to ...

'' (syn. ''Schoenocrambe linifolia''), '' Lepidium perfoliatum'', '' Thelypodium sagittatum'', and '' Thelypodium laciniatum''.''Pontia''
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References

External links

Butterflies and Moths of North-America: ''Pontia beckerii''—Becker's White
beckerii Butterflies of North America Fauna of the Baja California Peninsula Fauna of California Fauna of the California chaparral and woodlands Fauna of the Western United States Butterflies described in 1871 Taxa named by William Henry Edwards Lepidoptera of the United States Lepidoptera of Canada Lepidoptera of Mexico {{Pieridae-stub