NOTES ON THE BUTTERFLIES 3. MORPHO HYACINTHUS (Buti). This insect is recorded from the Cayo District, but it is rather scarce. 4. MORPHO POLYPHEMUS (Doub). A beautiful butterfly which I have only observed in the west, but there it is not uncommon. Specimens are, however, very hard to procure for the reason that the insect is always seen flying around the tops of the high forest trees and hardly ever descends low enough to be taken with the net. For this reason I was unable to secure any specimens-though I have waited for hours- except one which I picked up dead on the ground under one of the trees.