Gryllacridinae

Siqueira, Adriano M., Ferraz, Bernardo R. & Souza-Dias, Pedro G. B., 2025, A new genus of Raspy Cricket (Orthoptera: Gryllacrididae: Gryllacridinae: Progryllacridini) from the Brazilian Atlantic Forest, Zootaxa 5642 (6), pp. 581-591 : 589

Key to South American genera of apterous/micropterous Gryllacridinae

1 Males apterous (except Camposgryllacris ). Spurs on T1 and T2 with variable formula. T3 uniformly yellow ochre........ 2

- Males with rudiments wings presents laterally on meso- and metanotum. T1 and T2 with 5/4 spurs formula. Base of T3 darkened......................................................................... Camptonotus americanus

2 Stridulatory apparatus present. Ninth tergite of male dorsally divided in the middle by a thinner or smooth area, with processes on posterior margin. Male subgenital plate subquadrate or subrectangular, apex slightly to distinctly notched medially..... 3

- Stridulatory apparatus absent. Ninth tergite moderately inflated, with a median longitudinal carina on the distal half, posterior margin rounded. Male subgenital plate short, apex emarginate with an obtuse angle.................... Camposgryllacris

3 Face without dark brown markings. T1 and T2 with 5 pairs of spurs. Stridulatory apparatus with one row on tergite II and two rows on tergite III. Posterior margin of ninth tergite with two scapula-shaped or rectangular processes, bearing one or two apical spine-shaped. Last tergite with a bifid process on the anterior margin between the processes of ninth segment. Female subgenital plate triangular, apex rounded or bifid................................................ Fiancogryllacris

- Dark brown marking below compound eyes and behind scape. T1 with 5/5 spurs formula and T2 with 4/5. Stridulatory apparatus with two rows on tergites II and III, first shorter. Posterior margin of ninth tergite with a small median process, laterally more developed as lobule, apex bearing a short spine-shaped curved downward. Anterior margin of tenth tergite with a plate-shaped process, more compressed at the center. Female subgenital plate semicircular, anterior margin rounded........ Diplospinula