The zigzags made me think of a sand painting, but they reminded Eric of Charlie Brown's shirt! An appropriate connection for Sonoma County! (See picture of Charlie Brown's shirt here.)
Many of you know how much I like close-up photographs of moth wings, so here you go:
I'm not familiar with this species yet, so I have just started to work on the identification. (My first leaning was towards a species of Dysstroma?) I'll update it here if I can figure it out. If you know what species this is, feel free to submit a comment or to e-mail me.