Israel Butterfly
Butterflies’ vibrant colors and
gentle flight overwhelm us with feelings of wonder and joy. These beautiful
flying insects have inspired artists, poets and intellectuals alike. Their
wondrous life cycle, called a “complete cycle”, is made up of four stages: egg,
caterpillar, pupa and adult. A complete cycle from egg to adult is called a
generation. Some butterfly species produce one generation per year while others
produce numerous generations within a single year.
The lifespan of an adult butterfly
varies among species, with adults of some species living for approximately one
week and others for a number of weeks or even months. Some species are
considered to be local while others migrate for distances of hundreds
and thousands of kilometers. To date, some 150,000 species belonging to
the Lepidoptera order have been identified throughout the world, of which
approximately 20,000 species are butterflies, and the rest are moths. In Israel
there are an estimated 2,300 Lepidoptera species, including 142 species of
butterflies. Mt. Hermon is the richest butterfly species site in Israel, with
no less than 100 different species! Mt. Hermon is the southernmost point of
distribution for 30 of these 100 species, which do not fly to any other areas in
Israel. Overall, Israel’s butterfly population may be categorized into seven
families. Five of those families are represented among the butterflies featured
in the stamp series:
Swallowtail - Papilio machaon syriacus represents the Papilionidae
family. Many members of his family display prominent colors, including
black, yellow and red. These colors serve to warn birds and lizards that they
are poisonous.
Red admiral - Vanessa atalanta represents the Nymphalidae family. Like
many of the species belonging to this family, this butterfly remains
camouflaged as long as its wings are closed because its underwings are dull in
color, revealing its bold colors only when its wings are open wide.
Caper white - Anaphaeis aurota represents the Pieridae family of white and
yellow butterflies. This butterfly’s white wings are decorated with black
markings. This species migrates to Israel from Africa nearly every summer and
it may be seen flying throughout Israel until early winter.
Plain tiger - Danaus chrysippus is the only representative of the
Danainae family to be found in Israel. It migrates annually from Africa to
Israel and belongs to the same scientific genus as the American Monarch
butterfly, considered to be the most famous butterfly in the world thanks to
the tremendous distances it migrates.
Common blue - Polyommatus icarus zelleri and Tawny silver-line -
Apharitis acamas represent the largest family of butterflies in Israel – the
Lycaenidae family. Like many of the males belonging to this family, the Common
blue male is bright blue in color in order to attract females, while the
coloring of the Tawny silver-line allows it to blend into its surroundings and
remain camouflaged from its enemies.
Butterflies Assist in Biodiversity
Conservation
The International Union for
Conservation of Nature (IUCN) recently declared that the threat of extinction
of animal and plant species has reached a level of global crisis. Within the
framework of worldwide efforts to curb extinction, butterflies have been
identified as effective bio-indicators of ecosystem changes and have become an
important component in natural and environmental preservation. While constant
and long term monitoring of butterfly species provides information
regarding the loss and extinction of rare butterflies, no less importantly, a
dwindling of butterfly varieties also indicates a similar dwindling of plant
species and various other animal groups. Members of The Israeli Lepidopterists
Society promote national butterfly monitoring in Israel, doing so throughout
the country. The Society also initiated a bill to protect 14 endangered
butteflies species and a law was enacted in 2009.
Technical
Details
Issue
Date: 12.04.2011
Values: $2.88
Values: $2.88
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