National Geographic : 1946 Sep
A Cominu.ity of I)wvaifs Florets (Left) Develop the Black Pitchfork Seed Unless a Midge Produces a Gall (Right) Enlarged ten times, five florets show successive stages of opening. Nature designed the seed's barbs to stick to passers-by. Within the gall. a larva gorges on plant juice, preventing seed formation. SN al ionl (eograi:he Soeiely Kalaehromes by Willard It. ('ulver Little Gray Ghost, a Moth Sleeps by Day Weirdly Balanced on a Flower Stem Its name is Phalonia. Its caterpillars devour shepherd's-needle seeds, midge larvae, pupae, and galls. Tent cater pillars and wool eaters are types of destructive moths, but their cousin, the silkworm, works for man.