To a lesser extent in some areas, the caterpillar might also be seen on willow, ash, or hoptrees in Eastern North America. These caterpillars are also seen feeding on the leaves of trees such as the tulip tree. It can be found feeding on the leaves of roses or magnolias. The species doesn’t have a single host plant or tree. Eastern Tiger Swallowtail Caterpillar Eastern Tiger Swallowtail CaterpillarĮastern Tiger Swallowtail caterpillars (Papilio glaucus) are seen across diverse habitats. The following types of brown caterpillars are most common across North America. Hickory tussock caterpillars are known to be venomous, but these caterpillars are white. Only a handful of caterpillars in North America are poisonous. While most North American species aren’t poisonous, they might still cause dermatitis and skin rashes.īrown caterpillars across the United States might have urticating hairs that cause skin rashes. In general, it’s best to avoid touching caterpillars. Most caterpillars are detrimental through the eating damages they cause to the leaves, stems, or roots of their host plant. These caterpillars are not poisonous to the plants they live on. They might have a bad taste, mainly by absorbing the toxins of their host plants. Exposed Bird Dropping Moth Caterpillarīrown caterpillars aren’t venomous or poisonous.

Download light brown wooly worm