83a (82b). Head with adfrontal areas (= pair of narrow oblique sclerites on head) (as in

Fig.A); labium with a projecting spinneret; if present, antennae arise from

membranous area at base of mandibles; often 1 or more ocelli (usually 6) on each side of

head; ventral prolegs, if present, with crochets [moth larvae]..……..............................Lepidoptera

83b. Head without adfrontal areas, and labium without a spinneret; antennae and ocelli not as

previously described; prolegs, if present, without crochets................................................…….......... 84