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→''Trombicula''
*Grey or black discolouration of feathers when large numbers of mites are present
*Grey or black discolouration of feathers when large numbers of mites are present
===''Trombicula''===
===''Trombicula autumnalis''===
*In [[Parasitic skin infections - Pathology#Trombiculidiasis|skin infestation]]
*In [[Parasitic skin infections - Pathology#Trombiculidiasis|skin infestation]]
*Also called the 'harvest mite'
*Not host-specific
**Will parasitise any animal, including humans
*Only the larval stage is parasitic
**Nymphal and adult stages are free-living in the soil
*Mite numbers are highest in late summer in temperate climates
**Mite numbers are constant all year in tropical regions
'''Recognition'''
*Six legs
*Bright orange in colour
*Hairy
*No spiracles
**Breath through cuticle
'''Pathogenesis'''
*Larvae insert mouthparts into skin and inject cytolytic enzymes
*Feed on partly digested host tissue
*Causes irritation
*Can cause a hypersensitivity reaction
*Mites found on head, ears and flanks of pets
*Mites found on face and limbs of grazing animals (depending upon host height)
'''Control'''
*Very difficult
===''Leporacarus''===
===''Leporacarus''===