Figure 1 in Embryonic development of the olive fruit fly, Bactrocera oleae Rossi (Diptera: Tephritidae), in vivo

Figure 1. In vivo photographic illustration of Bactrocera oleae eggs. A) Anterior and posterior ends of the egg (1 h old); B) the chorion; C), D), and E) sequence of pole cell formation in a living embryo. The arrow indicates the posterior tip of the egg.