I would take him to the closest Hospital. It probably isn't a tick they stay on and you have to remove them with lighter fluid or alcholol. There are so many bugs lurking in Bushes and you have no idea what the effects could be. If he were mine I would run him down to the emergency, they see every kind of bite there and could help keep it from causing problems later. I doubt it is anything to worry about but you never know. If he is having no ill effects from the bite it probably isn't anything to worry about. I've never seen a short white stinger either, my kids were always getting bit by something and nothing happened to them. Bees are more worriesome than the bugs in the bushes I think.