Systolederus Bolivar 1887
Creators: name: Deng, Wei-An
name: Lu, Xiang-Yi
name: Zhao, Cong-Lin
name: Wu, Fei-Peng
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tetrigidae
Systolederus

description: Key to the Chinese Species of Systolederus Bolivar
Modified from Zheng (2013)
1. Outer side and inner side of hind tibia without spine............................. Systolederus aspinus Deng, sp. nov.
- Outer side and inner side of hind tibia with several spines...................................................... 2
2. Pronotum short, not reaching, reaching or just surpassing the apex of hind femora.................................. 3
- Pronotum elongate, extending far beyond the apex of hind femora...............................................4
3. Anterior margin of vertex straight in dorsal view; hind wings reaching apex of hind femora................................................................................................... Systolederus nigritibia Zheng, 2005
- Anterior margin of vertex acute in dorsal view; hind wings reaching middle of hind tibia............................................................................................. Systolederus brachynotus Zheng & Ou, 2010
4. Upper margin of pronotum undulating or undulating before shoulders in profile.................................... 5
- Upper margin of pronotum straight in profile................................................................ 6
5. With a pair of abbreviated carinae between shoulders; upper margin of pronotum undulating before shoulders in profile; width of midfemur 2.3 times width of tegmina.................................... Systolederus guangxiensis Zheng, 1998
- Without abbreviated carinae between shoulders; upper margin of pronotum undulating in profile; width of midfemur equal to width of tegmina......................................................... Systolederus emeiensis Zheng, 1998
6. Antenna inserted between lower margins of eyes............................................................. 7
- Antenna inserted below lower margins of eyes.............................................................. 10
7. Head distinctly exerted above upper level of pronotum; posterior process of pronotum reaching apex of hind tibia............................................................................. Systolederus oculatus Zheng & Ou, 2012
- Head slightly exerted above upper level of pronotum; posterior process of pronotum reaching one third to middle of hind tibia.................................................................................................... 8
8. Length of first segment of hind tarsi longer than third, first and second pulvillus small, third pulvillus large......................................................................................... ‘ Systolederus choui Liang, 2012
- First and third segment of hind tarsi equal in length; three pulvilli equal in length...................................9
9. Posterior process of pronotum reaching one third of hind tibia; humeral angle nearly rounded; width of midfemur wider than width of tegmina........................................................ Systolederus fujianensis Zheng, 1993
- Posterior process of pronotum reaching behind middle of hind tibia; humeral angle obtuse; width of midfemur equal to width of tegmina............................................................ .. Systolederus longinota Zheng, 2005a
10. Humeral angle nearly rounded; apex of tegmina acute; width of midfemur equal to width of tegmina.................................................................................. Systolederus spicupennis Zheng & Jiang, 2003
- Humeral angle obtuse; apex of tegmina narrowly rounded or rounded; width of midfemur wider than or narrower than width of tegmina............................................................................................ 11
11. Posterior process of pronotum reaching apex of hind tibia............. Systolederus longipennis Zheng, Jiang &Liu, 2005
- Posterior process of pronotum reaching middle to two-thirds of hind tibia........................................12
12. Width of midfemur equal to width of tegmina; posterior process of pronotum reaching two- thirds of hind tibia; outer part lower side of hind femur yellow brown............................. Systolederus heishidingensi s Zheng & Xie, 2004
- Width of midfemur distinctly wider than width of tegmina; posterior process of pronotum reaching middle of hind tibia; outer part lower side of hind femur black...................................................................... 13
13. Apex of tegmina broadly rounded; lower margins of midfemora undulated.......... Systolederus orthonotus Zheng, 1998
- Apex of tegmina narrowly rounded; lower margins of midfemora straight........................................ 14
14. Lateral ocelli placed on middle of anterior margins of eyes; with a pair of abbreviated carinae between shoulders; width of midfemur equal to width of tegmina in male................................. Systolederus hunanensis Zheng, 2013
- Lateral ocelli placed on below middle of anterior margins of eyes; without abbreviated carinae between shoulders; width of midfemur wider than width of tegmina in male............................................................. 15
15. Width of longitudinal furrow of frontal ridge equal to width of first antennal segment; hind wings reaching apex of posterior process of pronotum; width of midfemur equal to width of tegmina in female.................................................................................................... Systolederus guizhouensis Deng & Zheng, 2013
- Width of longitudinal furrow of frontal ridge narrower than width of first antennal segment; hind wings surpassing apex of posterior process of pronotum; width of midfemur wider than width of tegmina in female..................................................................................... Systolederus guposhanensis Deng, Zheng & Wei, 2007
description: Published as part of Deng, Wei-An, Lu, Xiang-Yi, Zhao, Cong-Lin & Wu, Fei-Peng, 2019, A review of the genus Systolederus Bolivar (Orthoptera: Metrodorinae) from China, pp. 489-500 in Zootaxa 4585 (3) on pages 490-491, DOI: 10.11646/zootaxa.4585.3.5, http://zenodo.org/record/2640219