Hemisphaeriini (Melichar, 1906)

Meng, Rui, Webb, Michael Donald & Wang, Ying-Lun, 2017, Nomenclatural changes in the planthopper tribe Hemisphaeriini (Hemiptera: Fulgoromorpha: Issidae), with the description of a new genus and a new species, European Journal of Taxonomy 298, pp. 1-25 : 2-4

publication ID

https://doi.org/ 10.5852/ejt.2017.298

DOI

https://doi.org/10.5281/zenodo.7007903

persistent identifier

https://treatment.plazi.org/id/03DA87E2-4F04-934C-729B-F97ABF6101E8

treatment provided by

Carolina

scientific name

Hemisphaeriini
status

 

Key to genera of Hemisphaeriini

1. Tegmen with claval suture …………………………………………………………………………2

– Tegmen without claval suture ………………………………………………………………………4

2. Tegmen with claval suture distinct in basal ¼ of wing; metope with median carina rudimentary in its apical part (Genezdilov 2015: figs 1–3) …………………… Bruneastrum Gnezdilov, 2015 View in CoL

– Tegmen with claval suture well-developed; metope with complete median carina or median carina absent ………………………………………………………………………………………3

3. Metope elongate, with median carina, without tubercules ( Chen et al. 2014: figs 2-35, 2-36) …………………………………………………… Neohemisphaerius Chen, Zhang & Chang, 2014 View in CoL

– Metope almost as wide as long in middle line, without median carina, with a row of tubercules along lateral margin ( Chen et al. 2014: fig. 2-33) ………… Paramongoliana Chen, Zhang & Chang, 2014 View in CoL

4. Metope with large bulge at center (Genezdilov 2013 b: figs 2–4) … Bolbosphaerius Gnezdilov, 2013 View in CoL

– Metope flat or slightly elevated in median area, without such bulge ( Figs 1B, D View Fig , F–G, J, L, 2C, 8B, 9D, 10H)…………………………………………………………………………………………………5

5. Tegmen depressed at base, costal margin moderately convex at basal one third as “relief shoulder” ( Figs 1A, C View Fig , 7A View Fig ) ……………………………………………………………………………………6

– Tegmen not as above ( Figs 1E View Fig , H–I, K, 8A, 9A, 10A) ……………………………………………8

6. Coryphe almost as wide as long, anteclypeus angularly rounded ( Fig. 6 View Fig A–B) … Gergithus Stål, 1870 View in CoL

– Coryphe distinctly longer than wide, anteclypeus flat ( Fig. 1 View Fig A–D) ………………………………7

7. Pronotum with median carina; anterior margin not foliate and elevated ( Fig. 1C View Fig ). Metatibiotarsal formula 6–8–2 …………………………… Neogergithoides Sun, Meng & Wang, 2012 View in CoL

– Pronotum without median carina; anterior margin foliate and elevated ( Fig. 1A View Fig ). Metatibiotarsal formula 6–10–2 …………………………………………………… Macrodaruma Fennah, 1978 View in CoL

8. Coryphe elongate, more or less triangular ( Fig. 1E View Fig ) … Choutagus Zhang, Wang & Che, 2006 View in CoL

– Coryphe broad, quadrangular ( Figs 1 View Fig H–I, K, 8A, 9A, 10A) …………………………………………9

9. Tegmen distinctly widened at basal costal margin ( Figs 8B View Fig , 10A View Fig ) ………………………………10

– Tegmen not widened at basal costal margin …………………………………………………11

10. Coryphe 4.5 times as wide as long; metope very broad below eyes ( Fig. 10A, D View Fig ) …………… …………………………………………………………………… Hemisphaeroides Melichar, 1903 View in CoL

– Coryphe 1.5 times as wide as long; metope not very broad below eyes ( Fig. 8 View Fig A–B) ……… …………………………………………………………………………… Mongoliana Distant, 1906 View in CoL

11. Metope with lateral margin almost right-angled at mid-length ……………………………………12

– Metope with lateral margin not right-angled at mid-length ………………………………………13

12. Mesonotum elevated, length in midline almost equal to combined length of coryphe and pronotum; tegmen distinctly long, oblong ( Melichar 1906: fig. 15) …… Hysteropterissus Melichar, 1906 View in CoL

– Mesonotum flat, twice combined length of coryphe and pronotum in mid line; tegmen relatively wide, nearly rhomboidal ( Fig. 1K View Fig ) …………………… Rotundiforma Meng, Wang & Qin, 2013 View in CoL

13. Clypeus with median carina ( Melichar 1906: fig. 16) …………… Hysterosphaerius Melichar, 1906 View in CoL

– Clypeus without median carina ……………………………………………………………………14

14. Fore and mid femora dilated ( Melichar 1906: fig. 14) …………………… Hemiphile Metcalf, 1952 View in CoL

– Fore and mid femora not dilated ……………………………………………………………………15

15. Metope with a row of tubercles and median carina ( Fig. 1G View Fig ) ……… Gergithoides Schumacher, 1915 View in CoL

– Metope without tubercles and median carina ( Figs 1J View Fig , 9 View Fig C–D) ……………………………………16

16. Hind wing well-developed, longer than half length of tegmen ………… Gnezdilovius View in CoL gen. nov.

– Hind wing shorter than half length of tegmen …………………………………………………17

17. Aedeagus with two processes, suspensorium indistinct …………………………………………18

– Aedeagus without process, suspensorium distinct ………………… Hemisphaerius Schaum, 1850 View in CoL

18. Pygofer in profile with hind margin distinctly angulated; phallobase asymmetrical at apex ( Chan & Yang 1994: figs 27–30) ………………………………… Euhemisphaerius Chan & Yang, 1994 View in CoL

– Pygofer not distinctly angulated; phallobase symmetrical ( Chan & Yang 1994: fig. 26) ………… …………………………………………………………… Epyhemisphaerius Chan & Yang, 1994 View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Issidae

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