In this article we will discuss about the external anatomy of musca domestica.
Usually the insects considered injurious are those which bite or sting. The house-fly can neither bite or sting, yet it is considered as one of the most notorious of all the harmful insects. These flies endanger human lives by carrying germs of various diseases. The common house-flies of our country are Musca domestica, M. rebula, M. vicinia (Fig. 15.20).
The common housefly, Musca domestica is of world-wide distribution, abundantly found around human habitation and filthy and dirty places. They are prevalent in summer and in rainy seasons. The housefly is diurnal as it shows much activity during daytime. They neither bite nor sting but their mere presence become intolerable to a conscious person, fearful of invisible enemies adhering to them.
The houseflies are day time visitors of human habitations specially in non-hygienic conditions. Apart from irritations the houseflies carry germs of many diseases. The germs of the diseases the flies carry are typhoid, diarrhoea, amoebic and bacillary dysentery, chorea, intestinal disorders etc. They not only suck the liquid from garbage, faecal matter, decaying organic manure etc. but also lay eggs there.
The open drains, garbage’s, kitchens and pantries are the favourite residing and breeding places of the housefly. The houseflies are in the habit of brushing their hairy legs and during the process of brushing they pollute as well as contaminate all sorts of food of human beings. The houseflies, being smart and agile, give flying visit over uncovered food and contaminate the food with various germs by their vomits and faeces.