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- الخطماء (الاسم العلمي: Trombicula) هي جنس من الحيوانات يتبع الفصيلة الخطميات من رتبة خطميات الشكل. (ar)
- Trombicula est un genre d'acariens de la famille des Trombiculidae. Les espèces de ce genre parasitent les chauves-souris. (fr)
- Trombicula, known as chiggers, red bugs, scrub-itch mites, or berry bugs, are small arachnids (eight-legged arthropods) in the Trombiculidae family. In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching and trombiculosis. These relatives of ticks are nearly microscopic, measuring 0.4 mm (0.01 in) and have a chrome-orange hue. A common species of harvest mite in North America is Trombicula alfreddugesi. The larval mites feed on the skin cells, but not blood, of animals. The six-legged parasitic larva feeds on a large variety of creatures, including humans, rabbits, wallabies, toads, box turtles, quail, and even some insects. After crawling onto their hosts, they inject digestive enzymes into the skin that break down skin cells. They do not actually "bite", but instead form a hole in the skin called a stylostome, and chew up tiny parts of the inner skin, thus causing severe irritation and swelling. The severe itching is accompanied by red pimple-like bumps (papules) or hives and skin rash or lesions on a sun-exposed area. For humans, itching usually occurs after the larvae detach from the skin. After feeding on their hosts, the larvae drop to the ground and become nymphs, then mature into adults, which have eight legs and are harmless to humans. In the postlarval stage, they are not parasitic and feed on plant materials. The females lay three to eight eggs in a clutch, usually on a leaf or under the roots of a plant, and die by autumn. (en)
- Trombicula of oogstmijt is een geslacht van mijten uit de familie van de Trombiculidae. In hun larvale stadium hechten ze zich aan verschillende dieren, waaronder mensen, en voeden zich op de huid, wat vaak jeuk veroorzaakt. Deze verwanten van teken zijn bijna microscopisch klein (ongeveer 0,4 mm) en hebben een chroomoranje tint. Een veel voorkomende soort oogstmijt in Noord-Amerika is ; in West Europa Trombicula autumnalis. (nl)
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| rdfs:comment
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- الخطماء (الاسم العلمي: Trombicula) هي جنس من الحيوانات يتبع الفصيلة الخطميات من رتبة خطميات الشكل. (ar)
- Trombicula est un genre d'acariens de la famille des Trombiculidae. Les espèces de ce genre parasitent les chauves-souris. (fr)
- Trombicula of oogstmijt is een geslacht van mijten uit de familie van de Trombiculidae. In hun larvale stadium hechten ze zich aan verschillende dieren, waaronder mensen, en voeden zich op de huid, wat vaak jeuk veroorzaakt. Deze verwanten van teken zijn bijna microscopisch klein (ongeveer 0,4 mm) en hebben een chroomoranje tint. Een veel voorkomende soort oogstmijt in Noord-Amerika is ; in West Europa Trombicula autumnalis. (nl)
- Trombicula, known as chiggers, red bugs, scrub-itch mites, or berry bugs, are small arachnids (eight-legged arthropods) in the Trombiculidae family. In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching and trombiculosis. These relatives of ticks are nearly microscopic, measuring 0.4 mm (0.01 in) and have a chrome-orange hue. A common species of harvest mite in North America is Trombicula alfreddugesi. (en)
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