FIGURE 4 in SEM and systematic studies of Steinernema abbasi Elawad et al., 1997, and S. riobrave Cabanillas et al., 1994 (Rhabditida: Steinernematidae)

FIGURE 4. SEM of female and males of S. riobrave. A, labial region showing the mouth, labial papillae (l), amphid (a), and cephalic papillae (c). B, posterior region of S. riobrave showing 12 pairs (arrows) and a single (s) genital papillae. C­D posterior region of males showing the presence of a special pair of genital papillae at the edge of the cloaca (arrow). Scales: A = 7.5 m; B = 60