KEY TO BRAZILIAN GENERA OF TAFALISCINA DESUTTER- GRANDCOLAS, 1988.

1. FWs absent or short, covering the metanotum, and sometimes reaching the second abdominal tergite .......... .................................................................................................................. Cylindrogryllus Saussure, 1878 (2)

— FWs developed, covering the entire abdomen or reaching the last abdominal tergites .................................. 3

2. FWs longer than wide, covering the two first abdominal tergites; LLophi completely sclerotized .................... .............................................................................................. Cylindrogryllus (Cylindrogryllus) Saussure, 1878

— FWs wider than long, covering only metanotum; LLophi inner margin membranous .................................... ................................................................................................. Cylindrogryllus (Neometrypus) Desutter, 1988

3. Male FWs with longitudinal veins, without a stridulum, or sometimes with a vestigial stridulatory file ....... 4

— Male FWs with a developed stridulum, including a well-developed stridulatory file ..................................... 5

4. Ocelli present, well developed; PCu vein curved inwards, sometimes with teeth on ventral side; metanotum without projections, or with two lateral projections; male genitalia with MLophi and LLophi. Female apex of ovipositor truncated or slightly acuminated ................................................................. Tafalisca Walker, 1869

— Ocelli generally absent, reduced when present; PCu not curved, without teeth on ventral side; metanotum with median region elevated; male genitalia only with LLophi. Female apex of ovipositor pointed ......................... ............................................................................................................................. Brazitrypa Gorochov, 2011

5. Male FWs covering the entire abdomen, stridulatory file not surrounded by strong sclerotization, apical field developed; TI with auditory tympanum on both faces; LLophi well developed, endophallic apodeme not bifid. Female apex of ovipositor without protuberances in dorsal and ventral sides .......... Amblyrhethus Kirby, 1906

— Male FWs not covering the entire abdomen, stridulatory file surrounded by a strong sclerotization, apical field not developed; TI with auditory tympanum on outer face only; MLophi well developed, endophallic apodeme bifid. Female apex of ovipositor with two protuberances in dorsal and ventral sides ........................................ ............................................................................................................................ Veredatrypa Campos n. gen.