Cavariella (Cavariellinepicauda) cicutisucta Qiao, 2005

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 (Cavariellinepicauda) cicutisucta Qiao, 2005

Figs 27 , 28 , 37A

Cavariella (Cavariellinepicauda) cicutisucta Qiao in Qiao et al. 2005: 331.

Types examined.

Holotype: one ap. viv. fem., China: Shanxi, 18.VII.2000, No. Y8507-1-1-1, on Cicuta virosa , coll. L.J. Zhang.

Other specimens examined.

three ap. viv. fems. and one ala. viv. fem. (slides), one ap. viv. fem. (COI: OP956123 ), Guizhou, 27.VII.2014, No. 33648, on Apiaceae , coll. F.F. Niu and Y.Q. Li.

Diagnosis.

Body white, covered with wax in life (Fig. 37A ); thoracic nota and abdominal tergites I-IV each with one pair of circular marginal tubercles (Fig. 27E, G, H ); thoracic nota and abdominal tergites I-IV each with one or two pairs of pale brown marginal sclerites, tergites V and VI often with small brown spino-pleural sclerites, tergites VII and VIII each with a brown sclerotic band (Fig. 27I ); dorsal setae short and blunt; rostrum reaching abdominal tergite III, URS elongate wedge-shaped, with five or six secondary setae (Fig. 27D ); cauda tongue-shaped (Fig. 27K ), with 8-13 setae ( Qiao et al. 2005).

Comment.

The species resembles Cavariella sapporoensis , but the main differences between the two species are as follows: abdominal tergites I-IV sclerotized, tergites VII and VIII each with a brown sclerotic band ( C. sapporoensis : only abdominal tergites VII and VIII sometimes with a brown sclerotic band); dorsal setae short and blunt ( C. sapporoensis : dorsal setae very long and pointed, curved distally).

Biology.

The species feeds on undersides of leaves near the roots of Apiaceae ( Cicuta virosa ) and is with ant attendance (Fig. 37A ) ( Qiao et al. 2005).

Distribution.

China (Guizhou, Shanxi).

Figures

Figure 27. Cavariella (Cavariellinepicauda) cicutisucta Qiao. Apterous viviparous female: A dorsal view of body B dorsal view of head C antenna D ultimate rostral segment E marginal tubercle of prothorax notum F hind tibiae G marginal tubercle of abdominal tergite I H marginal tubercles of abdominal tergites I-III I abdominal tergites II-VIII J siphunculus K cauda. Scale bars: 0.10 mm.

Figure 28. Cavariella (Cavariellinepicauda) cicutisucta Qiao. Alate viviparous female: A dorsal view of body B antenna C siphunculus D supra-caudal process on abdominal tergite VIII E cauda and anal plate F genital plate. Scale bars: 0.10 mm.

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.