Tropidocephalini Muir, 1915

Li, Hong-Xing, Chen, Xiang-Sheng & Yang, Lin, 2023, A new bamboo-feeding planthopper genus Aodingus Chen & Li (Hemiptera: Fulgoroidea: Delphacidae: Tropidocephalini) with descriptions of three new species from China and Vietnam, European Journal of Taxonomy 891, pp. 151-166 : 153-155

publication ID

https://doi.org/ 10.5852/ejt.2023.891.2279

publication LSID

lsid:zoobank.org:pub:F16764DB-7D3C-4007-81E7-48D6D35B953B

DOI

https://doi.org/10.5281/zenodo.10011089

persistent identifier

https://treatment.plazi.org/id/016F8602-520A-FFF9-FF49-FADFFAA0A633

treatment provided by

Plazi

scientific name

Tropidocephalini Muir, 1915
status

 

Key to genera of Tropidocephalini Muir, 1915 from China

(Modified from Qin & Zhang, 2010)

1. Body strongly flattened ( Figs 1B View Fig , 3B View Fig , 5B View Fig ) ........................................ Aodingus Chen & Li gen. nov.

– Body not flattened ............................................................................................................................. 2

2. Vertex subtriangular .......................................................................................................................... 3

– Vertex quadrate or nearly so ............................................................................................................. 4

3. Vertex raised upwards at apex; frons in midline more than 3.0 × as wide as maximum width .......... ....................................................................................................................... Conocraera Muir, 1916 View in CoL

– Vertex not raised upwards at apex; frons in midline less than 3.0 × as wide as maximum width ...... .................................................................................................................. Tropidocephala Stål, 1853 View in CoL

4. Antennal segment I distinctly large and flattened, longer than segment II .... Purohita Distant, 1906 View in CoL

– Antennal segment I not as above, if flattened, then shorter than segment II .................................... 5

5. Antennal segment I sagittate or strongly widening towards apex .................................................... 6

– Antennal segment I not sagittate or strongly widening towards apex .............................................. 7

6. Antennal segment I with median longitudinal carina .................... Neobelocera Ding & Yang, 1986 View in CoL

– Antennal segment I without median longitudinal carina ................................... Belocera Muir, 1913 View in CoL

7. Frons in front of vertex acutely convex in dorsal aspect, in profile apex of frons strongly bent caudad ................................................................................................. Arcifrons Ding & Yang, 1986 View in CoL

– Frons not as above ............................................................................................................................ 8

8. Postclypeus in profile strongly bent at right angle to frons .............................................................. 9

– Postclypeus in profile in the same plane as frons, or curved caudad but not at right angle to frons ................................................................................................................................................ 10

9. Head and thorax with longitudinal whitish stripe along midline from apex of postclypeus to end of mesonotum bordered with dark brown; frons in midline more than 2.0 × as wide as maximum width ............................................................................................................... Arcofacies Muir, 1915 View in CoL

– Head and thorax without longitudinal whitish stripe along midline; frons in midline about 1.4 × as wide as maximum width .......................................................................... Arcofaciella Fennah, 1956 View in CoL

10. Scutellum with median carina strongly keeled .......................... Carinodelphax Ding & Yang, 1987 View in CoL

– Scutellum with median carina not keeled ........................................................................................11

11. Vertex devoid of submedian carinae ............................................................................................... 12

– Vertex with submedian carinae ....................................................................................................... 13

12. Lateral carinae of pronotum reaching posterior margin; parameres divergent apically ..................... ............................................................................................................................ Gufacies Ding, 2006 View in CoL

– Lateral carinae of pronotum not reaching posterior margin; parameres convergent apically ............ ........................................................................................................... Mucillnata Qin & Zhang, 2010 View in CoL

13. Antennal segments fairly long, reaching or surpassing apex of clypeus ........................................ 14

– Antennal segments short, at most reaching anteclypeus ................................................................ 16

14. Male anal segment without process ........................................................ Lauriana Ren & Qin, 2014 View in CoL

– Male anal segment with process at left laterodistal angle .............................................................. 15

15. Submedian carinae of vertex percurrent and uniting at apex; male anal segment with cluster of hairlike setae at base of the left laterodistal process .................................... Malaxella Ding & Hu, 1986 View in CoL

– Submedian carinae of vertex uniting before apex of vertex; male anal segment bare at base of left laterodistal process ........................................................................................ Malaxa Melichar, 1914 View in CoL

16. Post-tibial spur devoid of apical tooth ........................................... Paranectopia Ding & Tian, 1981 View in CoL

– Post-tibial spur with apical tooth .................................................................................................... 17

17. Lateral carinae of pronotum not reaching hind margins ................................................................. 18

– Lateral carinae of pronotum reaching hind margins ....................................................................... 21

18. Anterior margin of vertex rounded ......................................................... Epeurysa Matsumura, 1900 View in CoL

– Anterior margin of vertex truncate or sinuate ................................................................................. 19

19. Median carina of frons not forked; parameres divergent apically ................. Mirocauda Chen, 2003 View in CoL

– Median carina of frons forked at basal third; parameres convergent apically ................................ 20

20. Submedian carinae of vertex uniting at apex .................................... Laticlypenus Ding & Hu, 2013

– Submedian carinae of vertex not confluent at apex ............................ Carinofrons Chen & Li, 2000 View in CoL

21. Anterior margin of vertex evenly rounded or truncated ................................................................. 22

– Anterior margin of vertex distinctly sinuate ................................................................................... 23

22. In profile, posterior margin of male pygofer strongly incised .... Specinervures Kuoh & Ding, 1980 View in CoL

– In profile, posterior margin of male pygofer not incised ......... Bambusiphaga Huang & Ding, 1979 View in CoL

23. Parameres convergent apically; male pygofer with laterocaudal margin strongly produced in pillarlike projection at each side .................................................... Neocarinodelphax Chen & Tsai, 2009 View in CoL

– Parameres divergent apically; male pygofer with laterocaudal margin sinuate but not produced ..... ............................................................................................................... Yuanchia Chen & Tsai, 2009 View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

InfraOrder

Fulgoromorpha

Family

Delphacidae

SubFamily

Delphacinae

Tribe

Tropidocephalini

Genus

Aodingus

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