Trombidiformes

order of arachnids Trombidiformes (Trombidiformes) is an order comprising closely related families of organisms. It contains 15 families with 40 known species. Key family groups include Anystidae, Bdellidae, Cheyletidae, Cunaxidae, Demodecidae, and Eriophyidae. It belongs to Arachnids (Arachnida).