yellow-green caterpillar eating a leaf

insect nature animal wildlife plumage thailand natural habitat kaeng krachan national park rainforest jungle mountains tropical montane forest unesco world heritage leaves foliage branch twig green red wings abdomen caterpillar butterfly moth worm larva larval stage lepidoptera sawflies symphytan larvae eruciform shape voracious agricultural pest silk inchworm looper moult hymenoptera metamorphosis pupa adult