Bay Sucker Trioza alacris

When visiting friends in Surrey and having a look round their garden the first thing I noticed was that they had a Bay tree and, having been unsuccessful searching for Trioza alacris on a Bay tree closer to home, I immediately saw this as an opportunity to find this distinctive psyllid. Sure enough a gall and three adults were quickly located. The female's forewing was 2.8mm long and the two males were both smaller with forewinigs 2.6mm long.

female Bay Sucker Trioza alacris showing forewing including close-ups of spinules and terminalia, Riddlesdown (Surrey, UK), 30th May 2025

2x male Bay Suckers Trioza alacris showing forewings (one of each) and genitalia, Riddlesdown (Surrey, UK), 30th May 2025

Bay Sucker Trioza alacris gall, Riddlesdown (Surrey, UK), 30th May 2025

I don't recall if I realised I'd collected this but when I came to examine the adults this was in the pot with them, an exuvia. I suppose it's possible that I collected two adults and a nymph and one transformed into an adult in the pot: if so it must have happened overnight as I took the photos of all three adults early the following morning.

Bay Sucker Trioza alacris exuvia, Riddlesdown (Surrey, UK), 30th May 2025