Numbers of hoverflies are dropping sharply now that we are entering the second half of September. Flowering plants are becoming scarcer, with only Devilsbit Scabious and the odd Common Ragwort hanging on here. Probably my last visit to Blaencaerau this year looking for hoverflies, instead I'll concentrate on the lower end of the valley with its Ivy and Japanese Knotweed in bloom. Managed 20 species but lots of them were single number sightings. Other insects stole the show today on the photography front.