Aspidophorodon (Aspidophorodon) salicis Miyazaki, 1971

(Figs 71–75, Table 1)

Aspidophorodon salicis Miyazaki, 1971: 183; Eastop & Hille Ris Lambers, 1976: 96; Blackman & Eastop, 1994: 569.

Aspidophorodon sinisalicis Zhang, 1980 in Zhang & Zhong: 58. syn. nov.

Trichosiphonaphis lijiangensis Zhang, Zhong & Zhang, 1992: 389 . syn. nov.

Aspidophorodon (Aspidophorodon) salicis Miyazaki: Remaudière & Remaudière, 1997: 74; Stekolshchikov & Novgorodova, 2010: 44.

Specimens examined. Syntype: apterous viviparous female, JAPAN: Hokkaido (Sapporo), 15.ix.1967, on Salix udensis, coll. M. Miyazaki (BMNH). Syntypes of Aspidophorodon sinisalicis Zhang, 1980 syn. nov.: 14 apterous viviparous females, CHINA: Beijing (Mt. Baihua), 27.viii.1963, No. Y 437, on Salix sp., coll. F. L. Wang (NZMC). Holotype and paratypes of Trichosiphonaphis lijiangensis Zhang, Zhong & Zhang, 1992 syn. nov.: 3 apterous viviparous females and 1 alate viviparous female, CHINA: Yunnan (Lijiang City, Mt. Yulongxue, altitude 2900 m), 27.v.1980, No. 7165, on Polygonum sp., coll. T. S. Zhong and L. Y. Wang (NZMC). Other materials: 1 apterous viviparous female and 5 apteroid nymphs, CHINA: Gansu (Yuzhong County), 30.vii.1986, No. 8569, on Salix pseudotangii, coll. G. X. Zhang, J. H. Li, and T. S. Zhong (NZMC); 1 apterous viviparous female (slide) and 1 apterous viviparous female (COI: KT 221040; Buchnera 16S rRNA: KT 221038), CHINA: Sichuan (Baoxing County), 14.viii.2003, No. 15038, on Salix sp., coll. K. Guo (NZMC); 4 apterous viviparous females, CHINA: Xinjiang (Burqin County), 23.vii.2007, No. 20604, host plant unknown, coll. D. Zhang (NZMC); 4 apterous viviparous females, CHINA: Ningxia (Jingyuan County, Mt. Liupan, altitude 1984 m), 26.vi.2008, No. 21540, on Salix sp., coll. J. Chen (NZMC); 3 apterous viviparous females and 1 alate viviparous female (slides), and 1 apterous viviparous female (COI: KT 221041; Buchnera 16S rRNA: KT 221039), CHINA: Sichuan (Leshan City), 12.vi.2009, No. 23167, on Salix sp., coll. J. J. Yu and X. Y. Li (NZMC).

Distribution. China (Beijing, Gansu, Ningxia, Sichuan, Xinjiang, and Yunnan), Japan, Sakhalin and the Kuril Islands.

Host plants. Polygonum sp., Salix pseudotangii, Salix udensis, Salix sp.

Biology. Colonized on undersides of leaves of host plant. The life cycle is unknown.

Comments. Zhang and Zhong (1980) described Aspidophorodon sinisalicis Zhang, 1980 based on apterae from Salix sp. Zhang et al. (1992) described Trichosiphonaphis lijiangensis Zhang, Zhong & Zhang, 1992 based on apterae and alatae infesting Polygonum sp. After reviewing the type specimens of these two species, we found that the apterae of A. sinisalicis (Fig. 72) and T. lijiangensis (Fig. 73) were actually spring morph of apterae of A. (A.) salicis (Fig. 71), and the alatae of T. lijiangensis (Fig. 75) and A. (A.) salicis (Fig. 74) were not significantly different. Therefore, Aspidophorodon sinisalicis Zhang, 1980 and Trichosiphonaphis lijiangensis Zhang, Zhong & Zhang, 1992 should be considered as junior synonyms of Aspidophorodon (Aspidophorodon) salicis Miyazaki, 1971 .