With the warm weather, these little red creatures, that race over hot surfaces like concrete window cills and more annoyingly garden table tops and leave behind an impressive red marking when rubbed dead, are alive and well again, in droves. I think they are not red spider mite. They might be lice (at least six legs, nrs 7 and 8 probably antennae). (I have searched the Net throught all corners, but couldn’t find anything. Do you know, what are they, how to fight them?