Fig. 5. SEM photographs of Heterorhabditis, day 5 after infection. A-C) Vulval region of H. bacteriophora (A), H. megidis (B) and H. hawaiiensis (C). D) Tail of H. megidis. All magnifications based on scale bar in A: A = 8.6 um, B = 27 um, C = 12 um, D = 27 um.