The follicle mite (Demodex folliculorum).
D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D008924:Mite Infestations / Q000473:pathology; D008925:Mites / Q000033:anatomy & histology / Q000302:isolation & purification; D012876:Skin Diseases, Parasitic / Q000473:pathology