The two aphid genera Microsiphum Cholodkovsky, 1902 and Oedisiphum van der Goot, 1917 are newly reported from China, with two newly recorded species. Microsiphum woronieckae Judenko, 1931 was found on Artemisia vulgaris L. from northwestern China and Oedisiphum soureni Basu, 1964 was collected on members of the genera Anaphalis DC. and Gnaphalium L. from southwestern China. The brief descriptions, key characteristics figures, ecological photographs, and distribution maps are provided.
Amirov et al. (Thu,) studied this question.
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