Indoor Mite Debris
A good source for information on indoor mites is the book by A. M. Hughs, THE
MITES OF STORED FOOD, Technical Bulletin
No. 9, Ministry of Agriculture, Fisheries and Food, London, 1961. This book
can be hard to find. A very abbreviated
reference but a very useful one is "Pictorial keys for the identification of
domestic mites" by M. J. Colloff and F. Th.
M. Spieksma in the journal Clinical and Experimental Allergy, 1992, Vol. 22,
pp. 823-830.
Most of these images are from environmental tapelift samples. These were
collected in homes, schools, and offices. A few are from laboratory
cultures.
Tyrophagus putriscentiea (T. noxius included) is one of the most common mites
in homes. It is known
as the common mold mite and can be found in great numbers inhabiting
established fungal colonies.
It and other Tyrophagus mites have been documented as causing human health
complaints since 1912.
The first documentation of health complaints cause in homes by this mite was
in 1957 though the Tyrophagus mites
in general had been known to cause problems in a number of occupational
settings. Many health problems
in homes reported as "mold" problems may in fact be due to the presence of
this mite. Tyrophagus is not
detected by the allergen tests for Dermatophagoidies mites. (See Hughes, THE
MITES OF STORED FOOD,p 42, 1961)
KINGDOM: Animalia PHYLUM: Arthropoda SUBPHYLUM: Chelicerata CLASS: Arachnida
SUBCLASS: Acari SUPERORDER: Acariformes
ORDER: Trombidiformes SUBORDER: Eleutherengona SUPERFAMILY: Tarsonemoidea
FAMILY: Tarsonemidae GENUS: Tarsonemus
Tarsonemus sp. are becoming increasingly common mites in homes in the United
States. They have long
been common in homes in Asia. It is known to be associated with asthma
sufferers in Asia. Tarsonemus
is not detected by the allergen tests for Dermatophagoidies mites.
KINGDOM: Animalia DIVISION: Arthropoda CLASS: Arachinida SUBCLASS: Acari
ORDER: Trombidiformes FAMILY: Demodicideae GENUS: Demodex
SPECIES: folliculorum
These mites inhabit the human skin, living in the hair follicles. A closely
related species Demodex brevis, lives in the sebaceous glands rather
than the hair follicles.
Mite frass contains much of the allergen associated with the mite. It is also
often found when mite fragments or the the mites themselves
may not be easily found.
MITE LEG
OTHER FRAGMENTS
|