The ovipositor sheaths or third pair of valvulae consisted of one segment and were thick, strong and divided into bands or annulations on the outer surface up to half of the length of the ovipositor (Figs.
During the process of stabbing the ovipositor is unsheathed (Ozkan and Gurkan, 2001) and both the ventral and dorsal stylets or valvulae come in contact with the body wall of the host at the same time to avoid any chance of fracturing the independently contacting stylets (Boring, 2010).
The sense organs, most probably the campaniform sense organs present at the surface of the pre-apical notch including the two circular rough areas helped the parasitoid wasp in sensing the position of dorsal and ventral stylests or valvulae during the process of locking mechanism.
After the ovipositor is inserted in the tissues of the host, the egg is moved forward by alternating rhythmic movements of the ventral stylets or valvulae (Rogers, 1972; Austin and Browning, 1981; Cole, 1981; Dweck et al.
The ctenidia in combination with ventral stylets or valvulae, assist in moving the egg in the basal section of the ovipositor shaft while the valvili help in moving the egg in the terminal part of it using hydrostatic pressure for a speedy delivery of the egg into the host.