Sycamore Periphyllus Aphid Periphyllus acericola
Like many other aphids, this species seems to have had a good year in 2025. What I initially took to be batches of eggs turned out on closer inspection to be tiny nymphs. The patterns formed by alates and nymphs seems quite distinctive.
Sycamore Periphyllus Aphids Periphyllus acericola, Wendling Beck Environment Project (Norfolk, UK), 14th May 2025