Insects - where have they gone?

At the start of the summer break, I had a large hire car for ten days (good service from Thrifty by the way). I drove it for 1200 miles, before taking it back. 
The night before, I hoovered the interior and washed the front to clear it of dead bugs. In the past, this would have taken a while, with bugs caking the front of the car and wing mirrors. This time round, there were hardly any insects to wash off the license plate...

This Guardian article on the disappearance of insects,  is another worrying sign of ecosystem change. Of course, when insects disappear, other things start to disappear as they are part of the food chain.

“Insects make up about two-thirds of all life on Earth [but] there has been some kind of horrific decline. We appear to be making vast tracts of land inhospitable to most forms of life, and are currently on course for ecological armageddon. If we lose the insects, then everything is going to collapse.”
Professor Dave Goulson of Sussex University

There is a tremendous link between insects and ecosystem change as one would expect.
This article describes some work to explore how many species are disappearing.

Image: Alan Parkinson