eggs and mature larvae, western tent caterpillars which are moderately sized caterpillars, or moth larvae, genus malacosoma, famil

americanum and are area branch bug caterpillar caterpillars cliffs closeup cocoon colony communal conservation crawl desert destructive eastern eggs family genus george green hairy hanging insect invasive invertebrate large larvae lasiocampidae macro malacosoma many mature moderately moth national nature nest new outdoors pest red reserve science silk sized social species spring stem tent tree twig usa utah weaving web western which white wildlife woods worm