Cavariella salicicola (Matsumura, 1917)

Xu, Ying, Chen, Jing, Jiang, Li-Yun & Qiao, Ge-Xia, 2023, Cavariella Del Guercio (Hemiptera, Aphidinae, Macrosiphini) in China, with a new species, new synonymies, and first country records, ZooKeys 1169, pp. 235-292 : 235

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 × cauda; SIPH clavate, thick, short, distinctly swollen over most of length, curved outward distally (Fig. 23G ), 1.70 × 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).

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.

Figures

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.

Figure 35. The ecological habitat photographs of Cavariella in field. A the apterae and nymphs of Cavariella nipponica Takahashi feeding on the underside leaves of Salix B one aptera of Cavariella pastinacae (Linnaeus) feeding on tender stem of Apiaceae C the apterae and nymphs of Cavariella pustula Essig feeding on tender stem of Salix D the apterae and nymphs of Cavariella salicicola (Matsumura) feeding on tender stem of Salix.