Well, our little unfriends are known carriers of disease (West Nile Virus, anyone?). In fact, the American Mosquito Control Association has an interesting website from which I quote the following:
Mosquitoes cause more human suffering than any other organism -- over one million people die from mosquito-borne diseases every year. Not only can mosquitoes carry diseases that afflict humans, they also transmit several diseases and parasites that dogs and horses are very susceptible to.
Now that shocking claim, if true, is reason enough for our animosity toward the bloodsucking little pests. Add to this the fact that they do all this while having an average lifespan of one to two months, and you can see why they are considered a major pest. I sure am glad they don't live as long as humans do!
Now I hate snakes, too. But when I see them around I know they do some good things for me like eating the rats and mice that might find their way into my home. I'm no expert or anything, but I'm having trouble coming up with any positive benefits of the mosquito's existence. Thus, I consider them a huge pain in the epidermis, just another of life's bloodsuckers, of which there are already too many.
One last thought. The Christian apologist C. S. Lewis expressed this wicked thought in his book The Problem Of Pain: "...if the worst came to the worst, a heaven for mosquitoes and a hell for men could very conveniently be combined."
Perish the thought!
Postscript: While I was preparing to put this post online I stopped to go to the bathroom. While there, what do you think flitted by my face but one of these varmints. I swatted at it, hit paydirt with the second attempt, leaving a bloody mess on the wall. Doubtless the critter came in when I went outside this morning to feed the cats. I was bit twice while petting the cats. Damn, I hate these pests! I will be fighting these stray pests that slip inside when I open my front door until September at least.