What kind of caterpillars live in Washington State?
|Native Plant Host||Caterpillar/Butterfly Species|
|Kinnikinnick (Arctostaphylos uva-ursi)||Brown Elfin (Callophrys augustinus)|
|Salal (Gaultheria shallon)||Brown Elfin (Callophrys augustinus), Spring Azure (Celastrina echo)|
|Bitterbrush (Purshia tridentata)||Brown Elfin (Callophrys augustinus|
How do I know what kind of caterpillar I have? Identifying Species. Look at the insect closely to see which color is most visible on its body. Decide whether the caterpillar’s body is mostly black, brown, gray/blue, green, red/orange, or yellow/white. This can help you narrow down the species and decide whether or not the caterpillar is safe to handle.
What caterpillars are poisonous in Washington state? The puss caterpillar, or woolly slug, is the most poisonous caterpillar in the United States.
What do Western tent caterpillars turn into? All tent caterpillars turn into rather nondescript moths. Eastern and Western Tent caterpillar moths are a plain reddish brown color with blurred white stripes across the front wings. Forest tent caterpillars moths are similar but have wide brown bands.