March 27th 2014

A House Fly is not most people’s favourite spring sighting, but they are fascinating, and are one of the most widespread insects in the World. House Flies are Diptera– two winged- their second pair being reduced to stabilisers behind the pair of functioning wings. They can carry up to 100 different diseases and reproduce really fast in ideal conditions. In fact scientists (those with too much time on their hands one presumes) have calculated that if a pair of house flies started laying eggs in perfect conditions in April, and all their offspring and subsequent offspring survived, they would have been responsible for the birth of 191,010,000,000,000,000,000 flies by August (a number I don’t even know how to say). Fortunately, they don’t all survive! One of the special things about House Flies is their eyes, which are compound organs made upon thousands of individual lenses, able to see polarised light and parts of the colour spectrum we can’t see. They can detect the slightest movement in a very wide field of vision- which is why they are so hard to swat! Conditions: Cold northerly breeze, heavy rain showers and cloud. Temperature: Max 8- Min 5c.

A House Fly

A House Fly

Close-up of the eyes of a House Fly

Close-up of the eyes of a House Fly and it’s mouthparts


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