Bohemia Ecological Preserve

This is an immature Western Tent Caterpillar larvae in its web nest. As it goes through several instar stages the larvae's colors change. These caterpillars can defoliate oaks as well as willows, fruit trees, mountain mahogany, ceanothus, wild currant and wild rose. The first evidence of infestation is the white silken tents in the branches of host plants. An Ag Department article describes the interesting stages in the larvae's life cycle from larva to moth to egg. Its adult name is Lackey Moth (Malacosoma neustrium).