A Micro Improvement?

Amongst all the talk of our losing species of mammals, birds and insects, it is somewhat contrary that the UK is apparently gaining one new species of micro-moth per annum (https://www.theguardian.com/environment/2018/jun/14/one-new-species-of-micro-moth-found-in-britain-every-year). The additions apparently arrive either under their own steam (flying in or, more probably, blown on the winds) or get imported along with agricultural or horticultural produce. These are a modest increase for our biodiversity and, in some cases, a potential source of future problems (some could turn out to be serious pests).