today i come home from school and i look at my blue hornets. they are close up. i look around and i see what looks like to be gsp looking polyps near my hornets. i was wondering what they were, my honets had not opend so i looked at the gsp looking things on my hornets. they were moving. i took a syring and poked it until i notice that it was a slug looking gsp. i poked them off and i had noticed one blue hornet polyp was missing. these slug things ate one of my polyps and i don't want this to happen again. how do i get rid of them. please help. and what are they?