I woke up after a day of mowing and found a colony of ?spiders? mites? something that doesn't belong on my backpack blower. There were none when I put it away and about 500 of them in the morning. Little yellow guys (and girls I guess) They had a network of webs built and were having a good time. Anyone know for sure what they are? I guess I could post in the pesticide forum but I picked these up on a lawn somewhere. What are they, thanks.