Dermatophagoides pteronyssinus Dust mite faecal pellets that can be small as 10μm,[1] but can be contained by anti-mite fabrics of a denser pore size.[2]
House dust mites (HDM, or simplydust mites) are various species ofacariformmites belonging to the familyPyroglyphidae that are found in association with dust indwellings.[3] They are known for causingallergies.
A scanning electron micrograph of a female dust mite
House dust mites, due to their very small size and translucent bodies, are barely visible to the unaided eye.[5] A typical house dust mite measures 0.2–0.3 mm in length.[6] The body of the house dust mite has a striatedcuticle.[citation needed]
House dust mite faecal pellets range from 10 to 40 μm.[1]
The average life cycle for a house dust mite is 65–100 days.[9] A mated female house dust mite can live up to 70 days, laying 60 to 100 eggs in the last five weeks of her life. In a 10-week life span, a house dust mite will produce approximately 2,000 fecal particles and an even larger number of partially digested enzyme-covered dust particles.[10]
Dust mites are found worldwide, but are more common in humid regions.[11] The speciesBlomia tropicalis is typically found only in tropical or subtropical regions.[12] Detectable dust mite allergen was found in the beds of about 84% of surveyed United States homes.[13] In Europe, detectable Der p 1 or Der f 1 allergen was found in 68% of surveyed homes.[14]
^Denmark, H. A.; Cromroy, H. L. (April 2017) [October 1998]."House dust mites—Dermatophagoides spp".Featured Creatures. Department of Entomology & Nemotology, University of Florida, and Florida Department of Agriculture and Consumer Services, Division of Plant Industry. EENY-59. Originally published asDPI Entomology Circular 314.
^Madden, Anne A.; Barberán, Albert; Bertone, Matthew A.; Menninger, Holly L.; Dunn, Robert R.; Fierer, Noah (2016). "The diversity of arthropods in homes across the United States as determined by environmental DNA analyses".Molecular Ecology.25 (24):6214–6224.Bibcode:2016MolEc..25.6214M.doi:10.1111/mec.13900.ISSN1365-294X.PMID27801965.S2CID22325949.
^Dutra, Moisés S; Roncada, Cristian; da Silva, Guilherme L; Ferla, Noeli J; Pitrez, Paulo M (2018-05-04). "Mite Fauna Assessment in Houses of Two distinct Socioeconomic Groups From Southern Brazil".Journal of Medical Entomology.55 (3):620–625.doi:10.1093/jme/tjx239.ISSN0022-2585.PMID29281052.
^Arbes, Samuel J.; Cohn, Richard D.; Yin, Ming; Muilenberg, Michael L.; Burge, Harriet A.; Friedman, Warren; Zeldin, Darryl C. (2003-02-01). "House dust mite allergen in US beds: Results from the first national survey of lead and allergens in housing".Journal of Allergy and Clinical Immunology.111 (2):408–414.doi:10.1067/mai.2003.16.PMID12589364.
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