Insects like cool, dark places
to retreat to in the summer and somewhere protected to live out the sharp winter frosts. A couple of tiles or upturned saucers hidden in the border is a good start. You can also make a Bug Hotel, as shown in the picture. Check out the link below to see how one is made.
There are also ready made shelters, like Lacewing Hotels, that you can buy from garden centres. These are made up of many hollow tubes and provide protection for lacewings and other small insects so they can survive the winter and are ready to leap into action in your garden in the spring.