Children (20 direct children, 4026 direct and indirect children):
Hydrachnidiae
(tree size 1231)
Hydracarina
Trombidioidea
(tree size 764)
Velvet mites and chiggers
Arrenuroidea
(tree size 517)
Calyptostomatoidea
(tree size 6)
Erythraeoidea
(tree size 454)
Long-legged velvet mites
Amphotrombioidea
(tree size 3)
Allotanaupodoidea
(tree size 12)
Chyzerioidea
(tree size 19)
Tanaupodoidea
(tree size 22)
Trombiculoidea
(tree size 49)
Yurebilloidea
(tree size 3)
Hydryphantoidea
(tree size 235)
Eylaoidea
(tree size 74)
Hydrovolzioidea
(tree size 23)
Hydrachnoidea
(tree size 2)
Lebertioidea
(tree size 573)
Stygothrombidioidea
(tree size 18)
Trombidiina
Erythraeina
Hydracarina
(tree size 1)