I live in Kinver in South Staffs and have a seriously increasing problem with Harlequin ladybirds overwintering around the inside of sash windows and coming into the house when the heating goes on. This has got worse over the last three years as they are multiplying at an alarming rate. Last week my daughter and young grandson came to stay and the light in our guest room brought them out in droves. I hoovered them up and lost count when I reached a hundred. The following evening they were there again. I find several in the kitchen sink each morning and have even had them drop into food. These are not the cute little ladybirds of nursery rhymes and childrens stories, and yes they do bite. It is impossible to collect the clusters and put them in a shed, as has been suggested in your magazine, because they gather in hidden nooks and crannies where you cannot find them. We have lots of native seven spots among the leaf litter in our garden but these invaders are not welcome. I am at a loss to know what to do next winter. Any suggestions would be most welcome.