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2019 Painted Lady Outbreak Underway in Southwestern U.S. and Northwestern Mexico

February 18, 2019

Painted Ladies have been appearing in the desert Southwest since early February, and large numbers of migrants have been spotted in several locations in southern California and northwestern Mexico since February 15.  What will happen next?  Will this be a typical outbreak of the kind we see every few years?  Or is this just the start of another phenomenal Painted Lady explosion to match the continent-wide migration of 2017?