A.T. Robertson Commentary Revelation 9:8

"And they had hair as the hair of women, and their teeth were as [teeth] of lions." — Revelation 9:8 (ASV)

They had (ειχαν). Imperfect active, late form as in Mr 8:7 in place of the usual ειχον.

As hair of women (ως τριχας γυναικων). That is long hair (1 Corinthians 11:15), with no reference to matters of sex at all, for ανθρωπων just before is used, not ανδρων (men as distinct from women). Perhaps the antennae of the locust were unusually long.

As the teeth of lions (ως λεοντων). Supply ο οδοντες (the teeth) before λεοντων. See Joe 1:6. The locust is voracious.