National Geographic : 1957 Aug
(Roundup Time at Flutter Inn Enthralls Young Visitors Many tropical butterflies like to wan der freely from bright sunlight to dense shade; they thrive on high humidity. To make temperamental charges feel at home, Simla's lepidopterists fill their cages with tropical plants. Wire screen ing keeps butterflies inside and excludes lizards and birds. Miss Crane here tempts an insect onto her flower-decked herding wand. Bystanders from a near-by Hindu settlement watch outside the cage. + Golden Pasture Lures Diners Butterflies, often finicky eaters, recog nize favorite foods by color as well as by scent. Faced with paper flowers, new adults instinctively choose colors preferred by their species. A quartet of Heliconius erato flocks to the bright-yellow blossoms of a lantana bush. They ignored the same plant when its gaudy blooms were hidden. Three of these eratos wear paint over their natural red wing spots (opposite).