My adorable little moth with his perky panting dog face, has been identified.
Professor Jim Hardie, Director of Science at the Royal Entomological Society in Britain, found him after much scratching of entomological heads, for which I am deeply grateful.
Little dog-face is Agapeta zoegana, or the sulphur knapweed moth. The larvae eat through the roots of knapweed, so it is a boon to farmers with invasive varieties of knapweed (particularly in the USA where Dog-Face isn’t a natural resident). Moths are collected in early August and put to work on sites where knapweed is a positive pest.
Here in Transylvania, where we have knapweed in healthy concentrations among the diverse wildflower meadows, Dog-Face can chomp through roots at leisure, stopping now and then for a photo opportunity in my kitchen.