Plumules: specialized scales of the androconia of male Lepidoptera.
Some of these various shaped "plumules" are shown in the illustrations.
Those with plumules will be seen to have the most abundant nourishment.
The branches are regularly arranged, and the comb-like branchlets bear the tetraspores on the tips of the plumules.
The males of many kinds of butterfly have special scales, which are known as androconia, or plumules.