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Two sequences of failed attacks by Elasmosoma luxemburgense. 1 the wasp (red arrow) approaches the ant 2 the wasp hits the metasoma 3 the right hind leg of the ant (yellow arrow) strikes the wasp and 4 throws it off 5 the wasp approaches the ant 6 when alighting, the right hind leg of the wasp (yellow arrow) remains over the hind leg of the ant, impeding the grasp of the ant’s metasoma 7 and 8 the wasp flies away.
