Thelazacallis Zhang in Qiao & Zhang 2000 = Thecabius Koch 1857 Thelazacallis ranunculicola Zhang in Qiao & Zhang 2000 = Thecabius affinis (Kaltenbach, 1843)

Paratypes of T. ranunculicola were examined and appear to be apterous exules of Thecabius affinis, which occurs widely on Ranunculus roots across Eurasia, with Populus spp. as primary hosts.