I think this is a Shaded Broad-bar, netted from the spillway area at Cullaloe, although it's darker and more rufous than any of the ones I've seen there before. May be a bit early, but it's just about right and they will be abundant soon enough. On reflection it may prove to be something else, but it looks in the ballpark at least. Lovely pectinate antennae.
Also netted at lunchtime in the spillway area was this Straw Dot, which sadly had to go in a smaller tube than ideal.