House fly.

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Presentation transcript:

House fly

House fly classification Phylum: Arthropoda. Class: Insecta. Kingdom: Animalia. Phylum: Arthropoda. Class: Insecta. Order: Diptera. Family: Muscidae. Genus: Musca. Species: M. domestica

One of the most familiar and widely distributed of all insects. Scientists have calculated that a pair of flies beginning reproduction in April may be progenitors, under optiminal conditions and if all were to live, of 191,010,000,000,000,000,000 flies by August.

Life cycle Complete metamorphosis. Female lay eggs. Egg hatch to give larva (maggot). Maggot transform into pupa. Adult emerge from pupa.

Life cycle

Life cycle

Eggs white eggs, about 1.2 mm in length, laid singly. Each female fly can lay up to 500 eggs in several batches of about 75 to 150 eggs, each over a three to four day period The number of eggs produced is a function of female size, which is principally a result of larval nutrition.

Eggs

Larva The mature larva is 3 to 9 mm long, typical creamy whitish in color, cylindrical but tapering toward the head The head contains one pair of dark hooks Legless The posterior spiracles are slightly raised and the spiracular openings are sinuous slits which are completely surrounded by an oval black border.

feed on and develop in the material (organic material) where the eggs were laid. The larvae go through three instars When the maggots are full-grown, they crawl up to 50 feet to a dried, cool place near breeding material and transform to the pupal stage.

Musca larva

Pupa The pupae are dark brown and 8 mm long. The pupal stage is passed in a pupal case formed from the last larval skin which varies in color from yellow, red, brown, to black as the pupa ages

Musca pupa

Adult Adult house fly is 6 to 7 mm long. The eyes are reddish. It has an aristate antenna. A house fly has a sponging mouthpart. The sponging mouthpart is modified into a flattened, rounded structure used for sapping and sponging liquid and semi-liquid food. Thorax is gray, with four dark longitudinal dark lines on the back

There are three pairs of walking up-side down legs. Their whole body is covered with hair. houseflies have only one pair of wings; the hind pair is reduced to small halteres that aid in flight stability.

Adult house fly

Musca sponging mouth parts

House fly leg The last segment of Musca leg

The differenc between male & female house fly The females are slightly larger than the males. Females have a much larger space between their red compound eyes.

Differetn stages of Musca life cycle

Medical importance transmission of pathogens (viruses, bacteria, fungi, protozoa, and nematodes) They are capable of carrying over 100 pathogens, such as typhoid, cholera, Salmonella, bacillary dysentery, tuberculosis, and parasitic worms. The flies in poorer and lower-hygienic areas usually carry more pathogens. Some strains have become immune to most common insecticides.

Thanks For Your Attention ???????? Thanks For Your Attention