Metrodorinae Bolívar, 1887

Lu, Xiang-Yi & Deng, Wei-An, 2021, New genus and new species of the subfamilyMetrodorinae from China (Orthoptera Tetrigidae), Zootaxa 4964 (2), pp. 345-362 : 346

publication ID

https://doi.org/ 10.11646/zootaxa.4964.2.6

publication LSID

lsid:zoobank.org:pub:94D93172-8AB5-48B0-B1B7-CECE813046A8

DOI

https://doi.org/10.5281/zenodo.4741007

persistent identifier

https://treatment.plazi.org/id/0399B302-FFB5-FFD0-FF05-AEFDFA2AF8A1

treatment provided by

Plazi (2021-04-22 09:34:37, last updated 2024-11-27 05:34:01)

scientific name

Metrodorinae Bolívar, 1887
status

 

Key to the Chinese genera of Metrodorinae Bolívar, 1887 View in CoL

Modified from Deng (2016), based on generic diagnosis of Pseudoxistrella Liang, 1991 , Pseudoxistrella spp. share the following characteristics: antennae filiform, fascial carina of the frontal costa diverge a little or runs parallel, posterior angles of lateral lobes turned downwards, apex of posterior angles rounded. The genus Pseudoxistrella should be transferred to subfamily Tetriginae . Therefore, this genus is omitted from the identification key. Thus, the subfamily Metrodorinae currently includes 16 genera (including the new genus Concavetettix Deng , gen. nov.) in China.

1. Fastigium of the vertex distinctly projecting before anterior margin of compound eyes............................... 2

- Fastigium of the vertex not or slightly projecting before anterior margin of compound eyes........................... 4

2. Fastigium of the vertex calyptriform protruding before anterior margin of compound eyes......... Calyptraeus Wang, 2001 View in CoL

- Fastigium of the vertex angular projecting or square projecting................................................. 3

3. Fastigium of the vertex angular projecting; antennal grooves inserted between inferior margin of compound eyes...................................................................................... Rhopalotettix Hancock, 1910 View in CoL

- Fastigium of the vertex square projecting; antennal grooves inserted lowest third of compound eye height...................................................................................... Miriatroides Zheng & Jiang, 2002a View in CoL

4. With a distinct obtuse projecting under each lateral carina of prozona; pronotum platy, in dorsal view, dorsum of pronotum with irregular concavities........................................................... Concavetettix Deng View in CoL , gen. nov.

- Without obtuse projecting under each lateral carina of prozona; pronotum tectiform................................. 5

5. Vertex narrow, still narrower towards front, eyes draw to each other in front and elevated....... Systolederus Bolívar, 1887 View in CoL

- Vertex not the same as above............................................................................ 6

6. Posterior margins of each lateral lobes of pronotum only with ventral sinus..................................................................................................... Macromotettixoides Zheng, Wei & Jiang, 2005 View in CoL

- Posterior margins of each lateral lobe of pronotum with ventral sinus and tegminal (upper) sinus...................... 7

7. Humeral apex ridge and lower margin of pronotum connected in the middle or behind middle of lower margin of pronotum.. ................................................................................................... 8

- Humeral apex ridge and lower margin of pronotum connected before middle of lower margin of pronotum.............. 9

8. Tegmina and hind wings present................................................. Macromotettix Günther, 1939 View in CoL

- Tegmina absent and with vestigial hind wings........................... Pseudomacromotettix Zheng, Li & Lin, 2012 View in CoL

9. Tegmina present and hind wings absent............................................. Paramphinotus Zheng, 2004 View in CoL

- Tegmina and hind wings present........................................................................ 10

10. Ventral margins of fore femora and middle femora with two big teeth..................... Orthotettixoides Zheng, 1998

- Ventral margins of fore femora and middle femora without big tooth............................................ 11

11. Head and eyes not exserted above pronotal surface.......................................................... 12

- Head and eyes distinctly exserted above pronotal surface..................................................... 13

12. Anterior part of pronotum strongly widened, arched and uplifted............................. Hyboella Hancock, 1915 View in CoL

- Anterior part of pronotum normal and strongly widened................................. Bolivaritettix Günther, 1939 View in CoL

13. Antennal grooves inserted far below inferior margin of compound eyes......................................... 14

- Antennal grooves inserted inserted lowest third of compound eye height or between inferior margin of compound eyes... 15

14. The vertex horn is distinctly raised above the dorsal margin of eyes and the vertex is deeply depressed between eyes in frontal view; pronotum between the shoulders is not elevated to an obtuse gibbosity...................... Xistra Bolívar, 1887 View in CoL

- In frontal view, the vertex horn slightly raised above the dorsal margin of eyes or not and the vertex slightly depressed or not depressed between eyes; pronotum between the shoulders generally strongly elevated to an obtuse gibbosity............................................................................................... Xistrella Bolívar, 1909 View in CoL

15. Antennal grooves inserted inserted lowest third of compound eye height; median carina of pronotum with a series projections......................................................................... Cotysoides Zheng & Jiang, 2000 View in CoL

- Antennal grooves inserted inserted between inferior margin of compound eyes; median carina of pronotum generally straight or undulated..................................................................... Mazarredia Bolívar, 1887 View in CoL

Bolivar, I. (1887) Essai sur les Acridiens de la tribu des Tettigidae. Annales de la Societe entomologique de Belgique, 31, 173 - 313.

Bolivar, I. (1909) Nouvelles especes d'Acridiens du Musee de Geneve. Boletin de la Real Sociedad Espanola de Historia Natural, 9, 399 - 400.

Deng, W. A. (2016) Taxonomic study of Tetrigoidea from China. Huazhong Agricultural University, Ph. D. Dissertation, 341 pp.

Gunther, K. (1939) Revision der Acrydiinae (Orthoptera), III. Sectio Amorphopi (Metrodorae Bol. 1887 auct.). Abhandlungen und Berichte der Museum fur Tierkunde und Volkerkunde zu Dresden, (A), 20, 1 - 335.

Hancock, J. L. (1910) Third paper on the Tetriginae (Orthoptera) in the Oxford University Museum. Transactions of the Entomological Society of London, 58, 346 - 365. https: // doi. org / 10.1111 / j. 1365 - 2311.1910. tb 01173. x

Hancock, J. L. (1915) Indian Tetriginae (Acrydiinae). Records of the Indian Museum, 11, 55 - 137.

Liang, G. Q. (1991) A new genus and a new species of Tetrigidae (Orthoptera) from Hainan Province, China. Oriental Insects, 25, 95 - 97. https: // doi. org / 10.1080 / 00305316.1991.10432217

Wang, Y. Z. (2001) A new genus and new species of Metrodoridae (Orthoptera: Tetridae) recorded in Yunnan, China. Journal of Southwest Agricultural University, 23 (2), 147 - 148.

Zheng, Z. M. (1998) A study of Tetrigoidea from Xishuangbanna (Orthoptera). Acta Zootaxonomica Sinica, 23 (2), 161 - 180.

Zheng, Z. M. & Jiang, G. F. (2000) New genus and new species of Metrodoridae from Guangxi (Orthoptera: Tetrigoidea). Acta Zootaxonomica Sinica, 25 (4), 402 - 405.

Zheng, Z. M. & Jiang, G. F. (2002 a) One new genus and seven new species of Tetrigoidea from southern region of Guangxi. Zoological Research, 23 (5), 409 - 416.

Zheng, Z. M. & Ou, X. H. (2004) Three new species of the genus Formosatettix Tinkham from Hengduan Mountain region of western Yunnan (Orthoptera, Tetrigidae). Acta Zootaxonomica Sinica, 29 (1), 107 - 109.

Zheng, Z. M., Wei, Z. M. & Jiang, G. F. (2005) A new genus and a new species of Metrodoridae (Orthoptera) from China. Acta Zootaxonomica Sinica, 30 (2), 366 - 367.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tetrigidae

SubFamily

Metrodorinae