One of seven species of parasitic Gymnosomid flies, this one the red-butted variety.Flies are everywhere and no matter what your station is in life, no matter where you go or what you do, you will bump into a fly doing something you don't understand or like, therefore, never, Oh, Best Beloved, take a fly for granted.
In the event you're not yet hooked into this little essay, here's a few things to think about when it comes to flies: First, they are the only insects that have only one pair of wings, all the others have two. To make up for the missing two wings, flies possess balancers, known as halteres, which are actually gyroscopes. Instead of having a centrifugal gyroscope to keep it stable in flight, the fly has an oscillating gyroscope. Didn't know that did you…?
Gnats are flies. Birds and bats eat gnats by the krijillions. Without gnats, a whole lot of birds and bats would go hungry. Some gnats look like mosquitoes, while others have such charming names, as: "love bugs," "moth flies," "march flies," scuttle flies," and so on. There are also "kissing bugs."
The most common fly we are all familiar with is the so-called "housefly." Houseflies touch everybody and everything. Their mouth is like a sponge, literally, and they spend their entire adult lifetime sticking their nose into everyone's food, garbage, poop and business, and the majority of these flies begin life as a maggot eating something dead. Mom was right; wash your hands!

