My yorkie had small tiny bugs on him. They were not flea's or ticks. THey were noticed when I brushed him. They looked like they were on the skin not the hair and they lookedreddish and smaller than a grain of salt. Hard to tell they were bugs. At first I thought it was just dirt. Any ideas??? I found them on his thigh area. nothing seen on his belly. No noticable bites. They seemed to be living in his hair.