PLATE I. Figs. 1A–21A. Male genitalia, dorsal view. 1A in Male genitalia morphology and dichotomous key of the Neotropical genera of Abracrini (Orthoptera: Acrididae: Ommatolampidinae) grasshoppers

PLATE I. Figs. 1A–21A. Male genitalia, dorsal view. 1A–Abracris flavolineata (De Geer,1773); 2A–Agesander ruficornis Stål, 1878; 3A–Arimacris trinitatis (Bruner, 1906); 4A–Caruaruacris bivitattus Costa & Carvalho, 2006; 5A–Eujivarus fusiformis Bruner, 1911; 6A–Eusitalces vittatus Bruner, 1911; 7A–Ixalotettix compactus Amédégnato & Descamps, 1979; 8A–Jodacris chapadensis Bruner, 1911; 9A–Liebermannacris dorsualis (Giglio-Tos, 1878); 10A–Monneacris fascipes Amédégnato & Descamps, 1979; 11A–Omalotettix obliquus (Thunberg, 1824); 12A–Orthocapheus coryaceus (Giglio-Tos, 1894); 13A–Parasitalces sexnotata Bruner, 1911; 14A–Psiloscirtus olivaceus Bruner, 1911; 15A–Rhachicreagra gracilis Bruner, 1908; 16A–Robustusacris balzapambae (Rehn, 1913); 17A–Roppacris griseipes Amédégnato & Descamps, 1979; 18A–Salvadoracris nigritus Costa &Carvalho, 2006; 19A–Sitalces volxemi Stål, 1878; 20A–Teinophaus saussurei Bruner, 1908; 21A–Xiphiola cyanoptera (Gerstaecker, 1889);ep.–epiproct; subg. p.–subgenital plate; cer.–cerci. Scales represent 1 mm in the figures.