With good weather forecast my plan was to do Garnwen properly, but I forgot it was Bank Holiday and there was only 1 parking spot when I arrived at 1100hrs. Nevertheless I spent a good 5hrs rummaging through the undergrowth despite the crazy looks I got off family parties, who by the look of them were on their annual walk. I recorded 33 species of Hoverfly and had a lifer in Eriozona syrphoides which was my 100th species for the valley, even though the valley list is 107 as Paul has had a few I haven't seen yet. It would not come out in the open and was tucked into the hedge, so photos were poor. Besides that a number of good other species were seen like Baccha elongata, Dasysyrphus albostriatus, Xanthogramma pedissequum, Melangyna umbellatarum, Leucozona laternaria, Xylota sylvarum, Eupeodes luniger, Epistrophe grossulariae and yet more Helophilus trivittatus. Eristalis tenax was the commonest species with 310 logged. I also had some interesting other insects, some of which I managed to photograph.