Update: September 22, 2017
Two weeks ago 2 to 3 Monarchs a day were flying through the yard. They didn’t dally, but grabbed a quick snack and were on their way, flying southwest.
Last week the numbers picked-up to 4 a day. By the weekend (Sept 15-17, 2017) 10 to 12 a day. None stayed more than a few minutes.
Length of time in pupa is generally 10 to 15 days. It appears things move a bit more slowly in Ontario. This is day 19 and finally a Monarch adult male hatched from the Meadowsweet (Spiraea alba). It formed its chrysalis on September 3, 2017 and hatched today September 22, 2017. (see photos previous Monarch blog).
Two more chrysalis found on Sept 04-17 are not hatched yet, maybe tomorrow.
While photographing the newly hatched adult, another one was discovered not a foot away, under a Morning Glory leaf on the fence. How did I miss that one?
Possibly the fall migration has begun early this year. Latest forecast has day-time highs of 7 C. or 45 F. for the 1st week of October.