Tribe Termitonannini Fenyes, 1918
Subtribe Perinthina Bernhauer & Scheerpeltz, 1926
0682. Macrognathellus Silvestri, 1946a: 20
Type species: Macrognathellus paraguayensis Silvestri, 1946
1 species is known from and is restricted to South America.
Characters/Description: Seevers 1957: 165 (characters in key), 174 (characters); Kistner 2004: 100 (characters).
Jacobson 1976: 37 (characters). Jacobson 1976: 45 (characters). characters). Distribution. South America: Brazil.