"We were in the courtyard at our school and I was looking under a leaf and I found one monarch egg," reported 3rd grade teacher Mr. Albert from South Elementary.

Later Start
The later arrival in the east means a later beginning to the breeding season there than in the central region. For example, the butterflies that began breeding in Massachusetts this week are 3 weeks behind those in Minnesota — that's almost enough time for a full monarch generation to develop.

How Many Generations?
Use this calendar to predict the timing and number of generations where you live. Watch for butterfly numbers to build each time a new generation emerges. The population will be at its peak when fall migration begins in August.

No Monarchs Yet?
The migration is approaching its northern extent, but many people have still not seen one. Has the wave of migration already passed without you seeing a monarch? If sightings have been reported from your region monarchs are present, but they may be hard to detect because they're so few in number. You may not see one until the population builds with the next generation.

The migration map shows this phenomona. After the leading edge passes, sightings fill in and become more concentrated. Watch for this to continue as more and more people see their first monarch.

"Today was the first day I saw a monarch butterfly in my garden. I know it is extremely late, but I did not see one this spring." June 14, Arlington, TX.