Titanosiphon bellicosum Nevsky 1928 = Titanosiphon neoartemisiae (Takahashi 1921)

Takahashi (1931) synonymised T. bellicosum with T. neoartemisiae, and the two original descriptions agree closely, but this synonymy has not appeared in catalogues. Both authors described aphids with black tibiae, whereas specimens in the BMNH collection from Iran, Georgia, Afghanistan, India, Pakistan and Mongolia have very variable pigmentation, with tibiae sometimes dark but often quite pale.