Wednesday 22 April 2015

Fleas (animal louse)


Introduction ( animal louse)

Fleas are the insect forming the order siphonaptera. They are wingless with mouth parts adapted for piercing skin and sucking blood.Some flea species include cat, dog, moorhen, northern rat, oriental rats and others. The flea has a long legs, the hind pair well adapted for jumping, a flea can jump vertically up to 7 inches (18 cm) and horizontally up to 13 inches (33 cm). Flea one of the best jumpers of all known animals. The flea body is hard, polished and covered with many hairs and short spines directed backward, which also assist its movements on the host.

Life cycle and habitat

Flea has going four life cycle stages of egg, larva, pupa and imago(adult). Adult fleas must feed on blood before they can become capable of reproduction.

Eggs 
The flea life cycle begins when the female lays after feeding. Egg are laid in batches of up to 20 or so ,usually on the host itself , which means that the eggs can easily roll onto the ground, The eggs take around two days to two weeks to hatch.

Larva
Flea larvae emerge from the eggs to feed on any available organic such as dead insects. They are blind and avoid sunlight.

Pupae
Given an adequate supply of food, another week or two the adult fleas are fully developed and ready to emerge. Fleas are known to overwinter in the larva or pupa stages.

Adult
Once the flea reached adulthood. Its primary goal is to find blood and then to reproduce. Female fleas can lay 5000 or more eggs over their life. A flea might live a year and a half under ideal condition. hovewer completely developed adult.









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