[Packing day for an early travel day tomorrow and a mandatory, dinner-time meeting for my "volunteer job."] This is likely an Orange Sulphur (“Colias eurytheme”) and a particular type of wasp — perhaps a Tiphiid wasp, as here, http://365project.org/rhoing/365/2015-05-18 — sharing the wealth in our back yard garden. I think this is on a mint blossom.
Retired economics professor (“dismal scientist”). Married 40+ years to the love of my life; we have two grown daughters, both married, two granddaughters and a...