Cavariella nigra Basu. 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 spino-pleural sculptures of abdominal tergites I–VI G marginal papillate tubercles of abdominal tergite II H abdominal tergites V–VIII I siphunculus J sculptures and papillate tubercles of abdominal tergites VII–VIII K supra-caudal process on abdominal tergite VIII L cauda M anal plate. Scale bars: 0.10 mm.

 
 
  Part of: Xu Y, Chen J, Jiang L-Y, Qiao G-X (2023) Cavariella Del Guercio (Hemiptera, Aphidinae, Macrosiphini) in China, with a new species, new synonymies, and first country records. ZooKeys 1169: 235-292. https://doi.org/10.3897/zookeys.1169.98552