- Tettix angustus Hancock, 1896: 238.
Syntype; female; 1a9af9ff-ce24-4fe7-9f88-7b8837c8be56; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Indiana: Monroe: Bloomington
- Tettix decoratus Hancock, 1896: 240.
Syntype; female; 4b78a0f3-843c-49b1-a498-34b34a2ed6ce; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Illinois: Cook: Riverside
- ... Show all ... (37)
- Tettix fluctuosus Hancock, 1896: 240.
Syntype; female; 4b6a0235-bda9-4b87-b987-8410458040a1; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Illinois: Cook: Riverside
- Tettix gibbosus Hancock, 1896: 239.
Syntype; female; 6d809d0f-278c-4b15-b654-e5259eff313e; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Illinois: Cook: Riverside
- Tettix inflatus Hancock, 1896: 238.
Syntype; female; 01b85426-d111-42a9-b53a-6527f5a55e1e; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Illinois: Cook: Riverside
- Tettix obscurus Hancock, 1896: 239.
Syntype; female; 40028ba1-cf89-494f-bde2-48b88fc7d645; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Illinois: Cook: Riverside
- Tettix arenosa costatus Hancock, 1902: 68.
Syntype; 32853fc5-a42f-4e5e-aea0-54da0f7d1b3a; None given
- Tettix gibbosus Hancock, 1896 in Hancock, 1902: 89.
- Tettix obscurus Hancock, 1896 in Hancock, 1902: 87.
- Acrydium arenosum angustum (Hancock, 1896) in Morse, 1919: 18.
- Acrydium arenosum angustum (Hancock, 1896) in Morse, 1920: 533.
- Acridium angustus angustum (Hancock, 1896) in Hebard, 1934: 169.
- Acrydium arenosum angustum (Hancock, 1896) in Cantrall, 1943: 81.
- Tettix arenosa costatus Hancock, 1902 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tettix decoratus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tettix fluctuosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tettix gibbosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tettix inflatus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tetrix arenosa angusta (Hancock, 1896) in Rehn & Grant, 1956: 121.
- Tetrix arenosa angusta (Hancock, 1896) in Widdows & Wick, 1959
- Tettix arenosa costatus Hancock, 1902 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tettix decoratus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tettix fluctuosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tettix gibbosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tettix inflatus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tettix obscurus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tetrix arenosa angusta (Hancock, 1896) in Rehn & Grant, 1961: 65.
- Tetrix arenosa angusta (Hancock, 1896) in Vickery & Kevan, 1967: 43.
- Tettix angustus Hancock, 1896 in Otte, 1979: 41.
- Tettix decoratus Hancock, 1896 in Otte, 1979: 41.
- Tettix fluctuosus Hancock, 1896 in Otte, 1979: 41.
- Tettix gibbosus Hancock, 1896 in Otte, 1979: 41.
- Tettix inflatus Hancock, 1896 in Otte, 1979: 41.
- Tettix obscurus Hancock, 1896 in Otte, 1979: 41, 45.
- Tettix arenosa costatus Hancock, 1902 (subjective synonym of Tettix angustus Hancock, 1896) in Vickery & Kevan, 1986: 313.
- Tettix decoratus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Vickery & Kevan, 1986: 313.
- Tettix fluctuosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Vickery & Kevan, 1986: 313.
- Tettix gibbosus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Vickery & Kevan, 1986: 313.
- Tettix obscurus Hancock, 1896 (subjective synonym of Tettix angustus Hancock, 1896) in Vickery & Kevan, 1986: 313.