A complete timetable of embryonic development of the tobacco hawkmoth,Manduca sexta (Lepidoptera: Sphingidae), is presented. Using living embryos, 20 developmental stages from oviposition to hatching are described with respect to their morphological and physiological maturation. This staging series provides a simple method to identify the stage ofManduca development during all phases of embryogenesis.
Keywords: Developmental entomology; Insect embryogenesis; Insect neurodevelopment; Invertebrate development; Lepidopteran development; Manduca sexta.