Cavariella Cavariellinepicauda Ivanovskaja, 1980

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

Subgenus Cavariella Cavariellinepicauda Ivanovskaja, 1980

Cavariellinepicauda Ivanovskaja, 1980: 79.

Diagnosis.

The species of the subgenus mostly feed on Apiaceae and are covered with wax in life (Fig. 37 ). In collected specimens, abdominal tergites I-IV often have circular marginal tubercles; ABD TERG VIII with indistinct supra-caudal process, shorter than Ant. II; rostrum long, sometimes reaching abdominal tergite IV, URS elongated wedge-shaped; cauda tongue-shaped, with> 8 setae; SPHI long cylindrical, with distinct flange, not swollen.

Comments.

The subgenus contains five species, with only two species distributed in China. Cavariella largispiracula Zhang, Chen, Zhong & Li, 1999 is considered as a junior synonym of Cavariella sapporoensis Takahashi, 1961. Cavariella hidaensis Takahashi, 1961 should be removed to Elatobium Mordvilko, 1914 based morphological and molecular data.

Figures

Figure 37. The ecological photos of Cavariella (Cavariellinepicauda) in field A one alate, apterae and nymphs of Cavariella cicutisucta Qiao feeding on tender stem of Apiaceae B the apterae and nymphs of Cavariella sapporoensis Takahashi feeding on tender stem of Apiaceae C the apterae and nymphs of Cavariella sapporoensis feeding on tender stem of Apiaceae with ant-attendance D one alate of Cavariella sapporoensis feeding on tender stem of Apiaceae.