Saturday 25 April 2015

MITE

MITES

Mites, along with ticks, are small arthropods belonging to the subclass Acari (also known as Acarina) and the class Arachnida. The scientific discipline devoted to the study of ticks and mites is called acarology. In soil ecosystems, mites are favored by high organic matter content and by moist conditions, wherein they actively engage in the fragmentation and mixing of organic matter.


Life Cycle of Scabies Mite

Metamorphosis is incomplete.

Eggs: The female scabies mites select place on the body where the skin is thin such as between the fingers and wrists, etc. The female burrows into the superficial layer of the skin and makes tunnels in which she lays about 30 eggs at the rate of 2-3 per day.

Larva: After 3-4 days the eggs hatch into larva. The larva are six legged. These larvae crawl out from the burrows. They come to the surface and bore into the hair follicles where vesicle form. After about 3 days the larvae mature into nymph.

Nymph: The nymph develop into adults in 6-8 days.

Adult: The life cycle from egg-egg takes about 14-31 days. The female mites may live about 1-2 months on man. Away from man they may survive for about 7-10 days under ideal conditions.



No comments:

Post a Comment