FIGURE 5 in SEM and systematic studies of Steinernema abbasi Elawad et al., 1997, and S. riobrave Cabanillas et al., 1994 (Rhabditida: Steinernematidae)

FIGURE 5. SEM of anterior region of exsheathed and ensheathed infective juveniles of S. riobrave. A,B, labial region of exsheathed IJ showing 2 horn­like structures in labial region. C,D, labial region of ensheathed infective juveniles showing labial region without 2 horn­like structures. Scales: A ­ D = 4.3 m.