Egg chorionic structures in Corduliidae and Libellulidae (Anisoptera)

Eggs of 11 Australasian Corduliidae and 7 Libellulidae, referable to 8 subfamilies, are described or redescribed, using light and scanning electron microscopy. Inconsistencies in existing libelluloid eggshell nomenclature are noted and a revised nomenclature! scheme is proposed.