Where did green lavae-like caterpillars in my 2nd floor flat appear from?
6cm long green caterpillars are NOT carpet moth larvae Goodness only knows where they have come from but probably from some greenery outside and have come inside to pupate ( spin a cocoon) & hibernate for the winter.A picture would be good, try uk safari for identification purposes. Sounds like they might be some sort of hawkmoth to me.Lovely creatures. Please don’t hurt them.