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 konoi Takahashi, 1939 Figs 13 , 14 , 33D Cavariella konoi Takahashi, 1939: 117. Specimens examined. One ap. viv. fem. and one ala. viv. fem. (slides), one ap. viv. fem. (COI: OP956129 ), China : Jilin , 4.VIII.2017 , No. 41101-1-1, on Salix , coll. H. Long and T.Y. Liu ; one ap. viv. fem. and one ala. viv. fem. (slides), one ap. viv. fem. (COI: OP956132 ), Jilin , 8.VIII.2017 , No. 41195-1-1, on Salix , coll. H. Long and T.Y. Liu. Diagnosis. PT 1.67-1.80 x Ant. VIb; URS 1.02-1.08 x HT II; SIPH long clavate (Fig. 13H ), 0.21-0.22 x body length; ABD TERG VIII with short conical supra-caudal (Fig. 13J ), 0.04-0.07 mm, as long as basal width; Ant. III and IV each with 28-32, 3 circular secondary rhinaria in alatae (Fig. 14B ) ( Takahashi 1939 ). Figure 13. Cavariella konoi Takahashi. Apterous viviparous female: A dorsal view of body B dorsal view of head C antenna D ultimate rostral segment E mesosternal furca F sculptures of abdominal tergites I-VI G abdominal tergites VI-VII H siphunculus I sculptures of abdominal tergite VII J supra-caudal process on abdominal tergite VIII K cauda L anal plate. Scale bars: 0.10 mm. Figure 14. Cavariella konoi Takahashi. Alate viviparous female: A dorsal view of body B antenna C siphunculus D supra-caudal process on abdominal tergite VIII E cauda F anal plate. Scale bars: 0.10 mm. Comment. Cavariella konoi was first described in China by Zhang et al. (1999) , but by checking the specimens, it was established that they were misidentified and should be Cavariella nigra Basu, 1964. Biology. The species was found feeding on the undersides of leaves of Salix (Fig. 33D ) in China, and it migrate between Salix and Apiaceae ( Blackman and Eastop 2022 ). Distribution. China (Jilin), Canada, Denmark, Finland, Germany, Japan, Mongolia, Norway, Poland, Russia, Sweden, UK, USA.