80a (79b). Labium with a protruding spinneret (= silk-producing structure); antennae arising

from membranous area at bases of mandibles; mandibles well developed, opposable; body

usually slightly flattened; ventral prolegs usually with crochets; mostly leaf miners in

leaves, bark, or fruits [moth larvae]....................................................................Lepidoptera......227

80b. Labium without a spinneret; antennae, if present, arising from head capsule; prolegs

without crochets......................................................................................................................…………...81