Numerical Analysis on Chaotic Vibration of Drive System for a Movable Tooth Piezoelectric Motor

The nonlinear dynamic equations of the drive system for movable tooth piezoelectric motor are established. Using these equations, the chaotic vibrations of the system are investigated. The results show that chaotic vibrations occur in the movable tooth drive system under some parameters. The average mesh stiffness, theoretical radius, and wave generator offset significantly influence the nonlinear chaotic vibrations of the drive system of the movable tooth piezoelectric motor. The ranges for the system parameters that lead to a motor with bad dynamics are shown. The results can be used to predict the dynamic load and optimize power density of the proposed piezoelectric motor

Xenovarta cylindrical Viraktamath

<i>Xenovarta cylindrical</i> Viraktamath <p> <i>Xenovarta cylindrical</i> Viraktamath, 2004: 27.</p> <p> <b>Distribution.</b> Vietnam, Cambodia.</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on page 197, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt

Xenovarta ankusha Viraktamath 2004

<i>Xenovarta ankusha</i> Viraktamath <p> <i>Xenovarta ankusha</i> Viraktamath, 2004: 26; Duan & Zhang, 2010: 45.</p> <p> <b>Distribution.</b> China (Guangdong, Guangxi).</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on page 196, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt

Xenovarta lii Xing 2018, sp. nov.

<i>Xenovarta lii</i> sp. nov. <p>Figs. 1–10</p> <p>Vertex 2.3 times as long as interocular width, 1.5 times as long as pronotum. Pronotum 2.2 times as wide as long, anterior margin strongly and roundly produced, posterior margin slightly concave. Scutellum approximately as long as pronotum. Color and external features as in generic description (See Viraktamath, 2004).</p> <p>Male genitalia. Pygofer slightly longer than high, narrowed caudally, ventroposterior margin with strongly inflexed subuliform process (Fig. 5). Fused valve and subgenital plates with distal part wide, parallel sided, each plate weakly bilobed apically with 4 macrosetae on lateral lobe (Fig. 6). Aedeagus with well-developed dorsal apodeme, shaft asymmetrical, curved dorsad, apex hook-shaped with large retrorse spine subapically at left side in ventral view, gonopore subapical on ventral side and located at 1/5 length of aedeagal shaft in lateral view (Figs. 7, 8). Connective stem slightly shorter than arms (Fig. 9). Style apophysis well-developed, approximately rostriform (Fig. 10).</p> <p> <b>Measurement.</b> Length (including tegmen): <i>6</i>, 6.9-7.0mm.</p> <p> <b>Type Material.</b> Holotype <i>6</i>, <b>CHINA</b>: <b>Yunnan</b> Prov., Maguan County, Dulong, 17 August 2017, coll. Yan Zhi; Paratype:1 <i>6</i>, data same as holotype (GUGC).</p> <p> <b>Host.</b> Bamboo.</p> <p> <b>Distribution.</b> China (Yunnan) (Fig 11).</p> <p> <b>Remarks.</b> This new species is similar to <i>X. subulata</i> Xing, Dai & Li, but can be distinguished from the latter by the distal part of subgenital plates wide and weakly bilobed, each only with 4 macrosetae; and the apex of the aedeagal shaft hook-shaped, and with a large retrorse spine subapically.</p> <p> <b>Etymology.</b> This new species is named after Prof. Zizhong Li (GUGC) in recognition of his good work on leafhoppers; and to congratulate him on winning the Lifetime Achievement Award of the Entomological Society of China, in 2017.</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on pages 197-198, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt

Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China

Xing, Jichun (2018): Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China. Zootaxa 4441 (1): 195-200, DOI: https://doi.org/10.11646/zootaxa.4441.1.1

Xenovarta subulata Xing, Dai & Li 2009

<i>Xenovarta subulata</i> Xing, Dai & Li <p> <i>Xenovarta subulata</i> Xing, Dai & Li, 2011: 66.</p> <p> <b>Material examined.</b> Holotype ♂, CHINA: Guangdong Prov., Mt. Nankun, 23 August 2010, coll. Jichun Xing (GUGC); 2♂♂, Guizhou Prov., Libo, Maolan, 16–20 July 2011, coll. Qiongzhang Song (GUGC).</p> <p> <b>Host.</b> Bamboo.</p> <p> <b>Distribution.</b> China (Guangdong, Guizhou).</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on page 199, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt

Xenovarta compressa Viraktamath 2004

? <i>Xenovarta compressa</i> Viraktamath <p> <i>Xenovarta compressa</i> Viraktamath, 2004: 25.</p> <p> <b>Distribution.</b> Malaysia (Sabah).</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on page 196, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt

Xenovarta longicornis Duan & Zhang 1956

<i>Xenovarta longicornis</i> Duan & Zhang <p> <i>Xenovarta longicornis</i> Duan & Zhang, 2010: 43.</p> <p> <b>Material examined.</b> 5♂♂ 2♀♀, CHINA: Hainan Prov., Jianfengling, 14 May 1997, coll. Maofa Yang; 1♂, Hainan Prov., Datian, 9 July 2007, coll. Jichun Zhang; 1♂ 5♀♀, Hainan Prov., Jianfengling, 10–12 July 2007, coll. Bin Zhang, Jichun Xing and Yujian Li; 2♂♂, Hainan Prov., Jianfengling, 10 April 2009, coll. Xiaohong Jiang. All GUGC.</p> <p> <b>Host.</b> Bamboo.</p> <p> <b>Distribution.</b> China (Hainan).</p>Published as part of <i>Xing, Jichun, 2018, Key to species of the genus Xenovarta Viraktamath (Hemiptera: Cicadellidae: Deltocephalinae) with description of a new species from China, pp. 195-200 in Zootaxa 4441 (1)</i> on page 197, DOI: 10.11646/zootaxa.4441.1.12, <a href="http://zenodo.org/record/1301973">http://zenodo.org/record/1301973</a&gt