Syneta major Nakane, 1963 Syneta adamsi is a species of beetles from the family of leaf beetles, subfamily Synetinae.

Syneta adamsi is found in China, Japan and Russia — in Khabarovsk Krai, Sakhalin of the Kuril Islands, Amur regions, and the Primorsky Krai.

[2] At length the beetle reaches 7.4 mm.

The epipleuron is flat, with a number of points at the inner edge.

The elytra of females have a long lateral keel.