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| DEMODICOIDEA (Hair-follicle Mites) (Contact)     Please
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  These elongated, worm-like mites have stump-like legs (xxxx).  They are parasitic in the subaceous glands
  and hair follicles of humans and animals. 
  They have modified piercing mouthparts. Members of he genus Demodes in the family Demodicidae attack
  humans.              
  Demodex folliculorum Simon
  is an annoying species on humans that is of little importance in spreading
  disease.  Demodex canis Leydig infests dogs, causing a mange, which
  is difficult to control.  Reports on
  this mite attacking humans are not substantiated even given the close association
  of dogs in households.   OCCURRENCE         
  Distribution of these mites may be worldwide but they are rarely found
  in North America.  Other species in
  the genus attack a variety of animals such as dogs and cattle, and are capable
  of spreading disease.  But they rarely
  are found on humans and apparently incapable of spreading disease pathogens
  if present.     Key References:     <medvet.ref.htm>        Matheson, R. 1950. 
  Medical Entomology.  Comstock
  Publ. Co, Inc.  610 p.     
  Service, M.  2008.  Medical Entomology For Students.  Cambridge Univ. Press.  289 p     |