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The housefly (Musca domestica) is a fly of the suborder Cyclorrhapha.It possibly originated in the Middle East, and spread around the world as a commensal of humans.Adults are gray to black, with four dark, longitudinal lines on the thorax, slightly hairy bodies, and a single pair of membranous wings.
Its body is 10–14 mm (0.39–0.55 in) in length – slightly larger than a house fly – and has brilliant, metallic, blue-green or golden coloration with black markings. It has short, sparse, black bristles ( setae ) and three cross-grooves on the thorax .
The lesser house fly (Fannia canicularis) , commonly known as little house fly, is a species of fly. It is somewhat smaller (3.5–6 mm (0.14–0.24 in)) than the common housefly and is best known for its habit of entering buildings and flying in jagged patterns in the middle of a room.
Female Melanostoma scalare hoverfly infected with Entomophthora muscae As well as the housefly Musca domestica , infection has been observed in adult flies in the families Calliphoridae , Culicidae , Drosophilidae , Muscidae , Sarcophagidae , Scathophagidae , Syrphidae and Tachinidae .
The life cycle in sheep is typical of the disease. The female flies lay their eggs on the sheep in damp, protected areas of the body that are soaked with urine and feces, mainly the sheep's breech . It takes approximately eight hours to a day for the eggs to hatch, depending on the conditions.
After the eggs have hatched in the feces, the larvae are ingested by the maggots of various flies that lay their eggs in the feces (such as Stomoxys (the stable fly) or Musca (the house fly). The nematode larvae develop within the maggot for about one week (depending upon ambient temperature), as the maggots mature into the imago (adult) fly .
The life-cycle is the larviparous type, similar to that of tsetse-flies, few offspring are produced per female but their survival rate is high. [53] In species that never develop wings as adults, such as Melophagus ovinus , the sheep-ked, the fully developed larvae are deposited by the female on the hair coat of the host.
The female takes approximately 2–5 minutes to engorge, after which it becomes sluggish for a while. The eggs are laid among putrefying organic materials such as hay, manure, and wood. Males usually die after mating and the females after laying eggs. The life cycle has a duration of about two weeks at temperatures around 27 °C (81 °F).