Dermatophagoides pteronyssinus

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Dermatophagoides pteronyssinus
Author(s): US Government
Source: Wikimedia Commons

Dermatophagoides pteronyssinus (Trouessart) - (European housedust mite)

This dust mite is common in houses and has a world-wide distribution. Its fecal pellets contain digestive enzymes which can cause allergies and asthma once they get into the air and are inhaled. It is closely associated with human dwellings and rarely found in other places. The mites prefer warm and moist environments where they inhabit matresses, carpets and upholstery. They feed mainly on microscopic organic particles shed by the human skin. The mite can be controlled with acaricides. However, this involves human health hazards and can result in the development of pesticide resistant mites.

Vernacular names
• Deutsch: Europäische Hausstaubmilbe
• English: European housedust mite

The adult is about 0.3 mm large. The life cycle from egg, through larval-, protonymph- and tritonymph stages, to mature adult lasts for 2-4 weeks under suitable conditions. The mite has a similar biology as the related species Dermatophagoides farinae and both species might occur together in the same environment.

For details see the respective page in Wikipedia.