Larva of orange tortrix, Argyrotaenia franciscana. Unlike the similar looking larvae of omnivorous looper, Sabulodes aegrotata, the tubercles at the base of hairs are not chalky white on orange tortrix.

Larva showing anterior end, 6X. Credit: Jack Kelly Clark
Larva of orange tortrix, Argyrotaenia franciscana. Unlike the similar looking larvae of omnivorous looper, Sabulodes aegrotata, the tubercles at the base of hairs are not chalky white on orange tortrix. Credit: Jack Kelly Clark