Butterflies
come in a variety of sizes. The world’s smallest known species, the blue pygmy found in southern California, has a wingspan
of just over a half inch. The largest species, New Guinea’s Queen Alexandra’s birdwing, can measure up to twelve
inches wingtip to wingtip.
WHERE MONARCHS LIVE
HABITAT Monarchs are found all around the world in sub-tropical to tropical
areas. They are found in open habitats including meadows, fields, marshes, and cleared roadsides.
RANGE Monarchs live through most of the USA, in southern
Canada, Central America, most of South America, some Mediterranean countries, the Canary Islands, Australia, Hawaii, Indonesia,
and many other Pacific Islands.
MIGRATION Some
groups of Monarchs migrate for over 2,000 miles during August-October, flying from Canada and the USA to overwinter in coastal
southern California to the transvolcanic mountains of central Mexico; this was determined by the Canadian scientist Dr. Fred A. Urquhart in 1975. Females lay their eggs along the migratory route. This migration takes up to
three generations of Monarchs to complete.
Other Monarchs stay in one area their entire lives.
LIFE
SPAN It takes about a month for the adult to develop (from egg to pupa to adult).
The life span of the
adult Monarch varies, depending on the season in which it emerged from the pupa and whether or not it belongs to a migratory
group of Monarchs. Adults that emerged in early summer have the shortest life spans and live for about two to five weeks.
Those that emerged in late summer survive over the winter months. The migratory Monarchs, which emerge from the pupa in late
summer and then migrate south, live a much longer life, about 8-9 months.
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