Cavariella Del Guercio (Hemiptera, Aphidinae, Macrosiphini) in China, with a new species, new synonymies, and first country records Author Xu, Ying https://orcid.org/0000-0002-8950-7718 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China & College of Life Science, University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing 100049, China Author Chen, Jing https://orcid.org/0000-0002-7584-5249 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China Author Jiang, Li-Yun https://orcid.org/0000-0002-2527-9613 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China Author Qiao, Ge-Xia https://orcid.org/0000-0002-7300-6812 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1 - 5 Beichen West Road, Chaoyang District, Beijing 100101, China & College of Life Science, University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing 100049, China qiaogx@ioz.ac.cn text ZooKeys 2023 2023-07-18 1169 235 292 http://dx.doi.org/10.3897/zookeys.1169.98552 journal article http://dx.doi.org/10.3897/zookeys.1169.98552 1313-2970-1169-235 2071042F21934F9B9E1022CDF27804AD DE97B238347A560A83FB2B2A4F1E9920 Cavariella salicicola (Matsumura, 1917) Figs 23 , 35D Nipposiphum salicicola Matsumura 1917 : 410. Specimens examined. One ap. viv. fem. (slide) and one ap. viv. fem. (COI: OP956117 ), China : Beijing , 6.V.2014 , No. 30855-1-1, on Salix , coll. X.J. Tang and T.T. Xu ; one ap. viv. fem. and one ala. viv. fem., Beijing , 6.V.2014 , No. 30836-1-1, on Salix , coll. Y. Wang , X.J Tang and F.F. Niu ; two ala. viv. fems., Hebei , 12.V.2002 , No. 13268-1-1, on Salix , coll. G.X. Qiao and H. Liu ; one ap. viv. fem., Beijing , 26.V.2015 , No. 34341-1-1, on Salix , coll. X.C. Zhu and Y. Li ; two ala. viv. fems., Qinghai , 9.VI.1997 , No. 11401-1-1, on Salix , coll. X.L. Chen ( Zhang et al. 1999 ). Diagnosis. ABD TERG VIII with conical supra-caudal process (Fig. 23H ), longer than cauda, 1.60 x cauda; SIPH clavate, thick, short, distinctly swollen over most of length, curved outward distally (Fig. 23G ), 1.70 x cauda; Ant. III-V each with 24-30, 3-7, 0-3 circular secondary rhinaria in alatae (Fig. 23K ) ( Matsumura 1917 ; Zhang et al. 1999 ). Figure 23. Cavariella salicicola (Matsumura). Apterous viviparous female: A dorsal view of body B dorsal view of head C antenna D ultimate rostral segment E second hind tarsal segment F sculptures of abdomen G siphunculus H supra-caudal process on abdominal tergite VIII I cauda. Alate viviparous female: J dorsal view of body K antenna L marginal tubercles of abdominal tergites II-IV M siphunculus N supra-caudal process on abdominal tergite VIII O cauda P anal plate Q genital plate. Scale bars: 0.10 mm. Biology. Primary host plant: Salix (Fig. 35D ); secondary host plant: Apiaceae ( Apium , Oenanthe javanica , Cryptotaenia , Levisticum , Sanicula , Sium ) ( Blackman and Eastop 2022 ). Distribution. China (Beijing, Gansu, Guangdong, Hebei, Henan, Inner Mongolia, Jiangxi, Jiangsu, Jilin, Liaoning, Ningxia, Qinghai, Shaanxi, Shandong, Taiwan, Tianjin, Yunnan, Zhejiang) ( Jiang et al. 2011 ), Japan, Korea, Russia.