Euchloe hyantis
Encyclopedia
Euchloe hyantis, the Pearly Marble, Pearly Marblewing or California Marble, is a butterfly
in the Pieridae
family. It is found from southern Oregon
south through California
west of the Sierra Nevada crest to northern Baja California
. The habitat consists of rocky canyons, cliffs, moraines and gravelly flats.
The wingspan
is 28 millimetre. The upperside of the forewing has a narrow cell bar very close to the edge of the wing. This cell bar is usually devoid of white scales. The underside is cream-white, the hindwing with yellow-green to green marbling. Adults are on wing from April to early July in one generation per year. They feed on flower nectar, including that of the larval hosts and others such as tansy-mustard or pussy-paws.
The larvae feed on the flowers and fruits of Brassicaceae
species, especially Streptanthus
species. Chrysalids hibernate.
Butterfly
A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...
in the Pieridae
Pieridae
The Pieridae are a large family of butterflies with about 76 genera containing approximately 1,100 species, mostly from tropical Africa and Asia. Most pierid butterflies are white, yellow or orange in coloration, often with black spots...
family. It is found from southern Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
south through California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
west of the Sierra Nevada crest to northern Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
. The habitat consists of rocky canyons, cliffs, moraines and gravelly flats.
The wingspan
Wingspan
The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...
is 28 millimetre. The upperside of the forewing has a narrow cell bar very close to the edge of the wing. This cell bar is usually devoid of white scales. The underside is cream-white, the hindwing with yellow-green to green marbling. Adults are on wing from April to early July in one generation per year. They feed on flower nectar, including that of the larval hosts and others such as tansy-mustard or pussy-paws.
The larvae feed on the flowers and fruits of Brassicaceae
Brassicaceae
Brassicaceae, a medium sized and economically important family of flowering plants , are informally known as the mustards, mustard flowers, the crucifers or the cabbage family....
species, especially Streptanthus
Streptanthus
Streptanthus is a genus within the mustard family, Brassicaceae. There are about 35 known species within the Streptanthus genus, distributed mostly throughout western North America. The common names for this genus are Jewelflower and Twistflower...
species. Chrysalids hibernate.
Subspecies
The following subspecies are recognised:- Euchloe hyantis hyantis
- Euchloe hyantis andrewsi Martin, 1936