ID by dissection, confirmed by Deborah Matthews
"Based on the thickness of the posterior apophyses and the sclerotization of the papillae anales, I believe this is one of the two or more species which are part of the Hellinsia pectodactylus complex. For now, we are calling it pectodactylus but stramineus or angustus may be used in the future. I can't see the anterior apophyses (they will be very short) and these do not always show without double staining. If I am correct, this specimen should be bit smaller than most of the species you are finding."