John Alston Moffat

John Alston Moffat (1825 – February 26, 1904) was a British-born Canadian entomologist who served as librarian and secretary to the Entomological Society of Ontario for fourteen years.

His mother, a sister of John Alston of Rosemount, died back home shortly after and his father remarried.

A brother of his father was Dr William Moffat who had served under Wellington in the peninsular war.

An older brother lived in Binbrook where Moffat spent some years and then moved to Hamilton, Ontario, working as a merchant tailor.

[1][2][3] He was among the first to identify the migratory behavior of monarch butterflies and noted that the movements involved multiple generations and no hibernation.