Narcissus pseodonarcissus
Jane McGary (Tue, 09 Apr 2013 09:47:41 PDT)

Narcissus and Galanthus (snowdrops) planted in woodland or other
shady areas are less likely to be attacked by bulb fly. I don't know
whether this is because the insect prefers warm situations, or
because the coloration of the fading foliage, which is said to
attract it, looks different to an insect's eye in sun.

Jane McGary
Portland, Oregon, USA