Fig.SEM. Steinernema glaseri.A-D) Spicules and gubernacula of first-generation male. E) Spicule tip showing a ventral aperture giving a hook-like appearence. F) gubernaculum, ventral view showing y-shaped cuneus. G-I) Spicule, spicule tip and ventral view of a gubernaculum of Steinernema anomalae for comparison.