Species File
Name: Palos Verdes Blue Butterfly
Laten Name: Glaucopsyche Lydamus Palosverdesensis
Width: 25~30 cm
Color: Male butterflies have a bright silvery-blue dorsal wings outlined in a narrow line of black.
Famle butterflies have brownish-gray color.
Famle butterfly
Habit and Range
Adult butterflies of all silvery blue subspecies are closely associated with their legume larval food plants. Palos Verdes blue butterfly is a coastal sage associated electrotype, originally believed restricted to the milk vetch as foodplants. The vetch was largely confined to the summer fog belt characteristic to the southern exposures of the Palos Verdes peninsula at elevations between 100 and 300 meters.One sad factor is Palos Verdes blue butterfly adult lifespan is only five days
Current conservation efforts are supported by the Defense Logistics Agency and the U.S. Navy and implemented by the Palos Verdes Peninsula Land Conservancy, The Urban Wildlands Group, and The Butterfly Project led by biologist Jana J. Johnson at Moorpark College. Also there is the Youth Environmental Service program of the Palos Verdes / South Bay Audubon Society and other volunteer groups have provided help weeding and establishing habitat for the butterfly. Also we can see, there are a lot organizations group try to save this beautiful butterfly.
Role in Ecosystem:
Palos Verdes blue butterfly eat ragweed and rattle-pod nectar. When they are just larvae they eat the leaves and not the nectar.
Reason for Decline
The main reason cause decline for the Palos Verdes blue is it has been habitat destruction due to weeds and rototilling. Also it has negative effects on the essential larval foodplants. In addition, recreational, commercial, or residential development of the Palos Verdes peninsula is also a major concern in preservation of the foodplants.
Current Conservation Effort
Current conservation efforts are supported by the Defense Logistics Agency and the U.S. Navy and implemented by the Palos Verdes Peninsula Land Conservancy, The Urban Wildlands Group, and The Butterfly Project led by biologist Jana J. Johnson at Moorpark College. Also there is the Youth Environmental Service program of the Palos Verdes / South Bay Audubon Society and other volunteer groups have provided help weeding and establishing habitat for the butterfly. Also we can see, there are a lot organizations group try to save this beautiful butterfly.
Source:
http://lepidopteraresearchfoundation.org/pdf/pdf31/31-180.pdf
http://www.xerces.org/wp-content/uploads/2009/03/glaucopsyche_lygdamus_palosverdesensis.pdf
http://en.wikipedia.org/wiki/Palos_Verdes_blue
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