Cavariella aegopodii (Scopoli, 1763)

Figs 3, 4, 32D

Aphis aegopodii Scopoli, 1763: 137.

Specimens examined.

Six ap. viv. fems. and four ala. viv. fems., China: Yunnan, 25.V.1980, No. 7157, on Foeniculum vulgare, coll. T.S. Zhong and L.Y. Wang (Zhang and Zhong 1984) ; one ap. viv. fem., Gansu (Zhangxian County), 24.VII.1986, No. 8501-3-4, on Salix, coll. G.X. Zhang, T.S. Zhong and J.H. Li (Zhang et al. 1999) ; one ap. viv. fem. (slide) and one ap. viv. fem. (COI: OP956128), Tibet ( Lasa City), 23.VIII.2017, No. 40940-1-1, on Salix, coll. X.Y. Luo ; two ap. viv. fems. (slides) and one apterous female (COI: OP956143), Yunnan ( Lijiang City), 26.V.2021, No. 50266-1-1, on Salix, coll. T.Y. Liu and S. Xu ; two ap. viv. fems. (slides) and one apterous female (COI: OP956151), Tibet ( Xigaze City), 16.VII.2021, No. 51884-1-1, on Salix, coll. Y. Xu ; three ala. viv. fems. and one ap. viv. fem., Qinghai ( Xining City), 5.VI.1997, No. 11333, on Salix, coll. X.L. Chen ; one ala. viv. fem. and one ap. viv. fem., Sichuan, 24.VIII.2013, No. 30092-1-1, on unknown host plant, coll. R. Chen.

Diagnosis.

URS shorter than HT II and without accessory setae (Fig. 3E, F); PT 0.85-1.14 × Ant. VIb, mostly longer than Ant. VIb (Fig. 3C); supra-caudal process longer than 1/2 of cauda but rarely extending beyond tip of cauda (Fig. 3I) (Zhang and Zhong 1984; Zhang et al. 1999).

Biology.

Primary host plant: Salix; secondary host plant: Apiaceae . The species feeds on leaves and tender tips of Salix (Fig. 32D). The species is a major pest of cultivated Apiaceae, and it feeds on leaves and umbels of many genera in Apiaceae (Blackman and Eastop 2022).

Distribution.

China (Heilongjiang, Gansu, Qinghai, Sichuan, Taiwan, Tibet, Xinjiang, Yunnan, Zhejiang) (Zhang et al 1992; Jiang et al 2011), Canada, Europe, USA.