the cater beetle is starting to hatch his egg, but he has to leave

hatch caterpillar beetle egg emerge journey wriggle pupa cocoon crawl chrysalis wriggling scurry pupal molt burrow spiral mandible wrigglers mandibles writhing delicate emerging wriggled pupae wriggles moulting scurrying burrowing molting pupating cocoons wriggly chrysalides spire pupation