Diptera: Cecidomyiidae - gall midge Jaapiella loticola Gall on Lotus corniculatus, Birds-foot-trefoil Hosts: Lotus corniculatus, parviflorus, pedunculatus, tenuis Mature larvae are orange-red and unable to jump. The less frequent Contarinia barbichei forms identical galls but the whitish or yellow larvae are able to jump. As young larvae of both species are colourless the ability to jump (or not) is the only practical way to differentiate between the two

Jaapiella loticola
Badbury Rings, Dorset. July 2018