Tetrix (insect)

Tetrix^[2] is the type genus of ground-hoppers or pygmy grasshoppers in the tribe Tetrigini.^[1] There are at least 180 described species in Tetrix.^[3][4][5][6]

Tetrix
Tetrix subulata
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Orthoptera
Suborder:	Caelifera
Family:	Tetrigidae
Subfamily:	Tetriginae
Tribe:	Tetrigini
Genus:	Tetrix Latreille, 1802
Diversity
At least 180 species.
Synonyms[1]
Acridium Schrank, 1801 Acridium Schaeffer, 1766 Acrydium Geoffroy, 1762 Acrydium Fabricius, 1775 Bienkotetrix Kis & Vasiliu, 1970 Depressotetrix Karaman, 1960 Macedotetrix Karaman, 1960 Tetix Caulfield, 1887 Tetratetrix Karaman, 1965 Tettis Kittary, 1849 Tettix Berthold, 1827 Uvarovitettix Bazyluk & Kis, 1960

Selected Species

See: List of Tetrix species

• Tetrix arenosa (obscure pygmy grasshopper)
• Tetrix ceperoi (Cepero's ground-hopper)
• Tetrix ornata (ornate pygmy grasshopper)
• Tetrix subulata (slender ground-hopper) - type species
• Tetrix undulata ('common' ground-hopper)

Tetrix undulata: typical brachypterous form

Tetrix (syn. Depressotetrix) depressa: macropronotal form

Geographic searches

Species records are mostly from the Palaearctic and Nearctic realms, with a few in Africa and Australia.^[1] Regional searches include:

Europe

1. Tetrix bipunctata (Linnaeus, 1758)
2. Tetrix bolivari Saulcy, 1901
3. Tetrix ceperoi ceperoi (Bolívar, 1887)
4. Tetrix depressa Brisout de Barneville, 1848
5. Tetrix fuliginosa (Zetterstedt, 1828)
6. Tetrix gavoyi Saulcy, 1901
7. Tetrix kraussi Saulcy, 1888
8. Tetrix nodulosa (Fieber, 1853)
9. Tetrix subulata (Linnaeus, 1758)
10. Tetrix tartara (Saussure, 1887)
11. Tetrix tenuicornis (Sahlberg, 1891)
12. Tetrix transsylvanica (Bazyluk & Kis, 1960)
13. Tetrix tuerki (Krauss, 1876)
14. Tetrix undulata (Sowerby, 1806)

Asia tropical

1. Tetrix arcunotus Ingrisch, 2001
2. Tetrix areolata Westwood, 1841
3. Tetrix bipunctata (Linnaeus, 1758)
4. Tetrix ceperoi chinensis Liang, 1998
5. Tetrix dimidiata Westwood, 1841
6. Tetrix ensifer Westwood, 1841
7. Tetrix hururanus Ingrisch, 2001
8. Tetrix longzhouensis Zheng & Jiang, 2000
9. Tetrix munda (Walker, 1871)
10. Tetrix nigricolle (Walker, 1871)
11. Tetrix pseudodepressus (Ingrisch, 2006)

North America

1. Tetrix arenosa (Hancock, 1896)
2. Tetrix brunnerii (Bolívar, 1887)
3. Tetrix japonica (Bolívar, 1887)
4. Tetrix ornata (Say, 1824)
5. Tetrix sierrana Rehn & Grant, 1956
6. Tetrix subulata (Linnaeus, 1758)