bagworm cocoon on an eastern red cedar tree

area bag bags bagworm bagworms brown bug caterpillar caterpillars cedar central cocoon cones conservation dangles eastern emerge emerging ephemeraeformis feeds hanging infest infests insect insecticide inside invasive juniperus leaves mistaken moth mysterious natural parthenogenesis pest pests red scales state surface theridopteryx tree trees virginiana western wilderness wonder worm transform parthenogenesis buggy caterpillar silk bagworm baggy creepy