Bioacoustics of Bullacris

Males 1 (2) Antennae slightly club-like widened at apical part ( Fig. 12 A ). Supra-anal plate comparatively short and widely angular ( Fig. 17 ).......................................................................................... unicolor 2 Antennae filiform ( Fig. 12 B ). Supra-anal plate comparatively long and narrow, angular............................. 1 3 Pronotum in profile highly accurate...................................................................... 6 4 (5) Pronotum in profile regularly accurate. Third episternum with brown patch and third abdominal tergite with 6–9 stridulatory ridges. Size smaller ( 42–52 mm ) ( Fig. 28 )......................................................... intermedia 5 (4) Arc of pronotum, in profile, lower in prozona. Third episternum without brown patch and third abdominal tergite with 9 stridulatory ridges. Size larger ( 45–58 mm ) ( Fig. 30 ).............................................. membracioides 6 (3) Pronotum in profile low arcuate. Elytra each with white spot. Third abdominal tergite with 8 stridulatory ridges ( Fig. 15 )............................................................................................. boschimana 7 Pronotum in profile regularly arcuate. Third abdominal tergite with 9–10 stridulatory ridges........................ 10 8 (9) Pronotum without callosities. Veinlets of reticulation of elytra is the same colour as membrane. Sides of abdomen with ocellate pattern or uniform ( Fig. 23 )........................................................................ discolor 9 (8) Pronotum with whitish callosities. Veinlets of reticulation of elytra darkened. Sides of abdomen with ocellate and marble pattern ( Fig. 26 )................................................................................. serrata 10 (8) Arc of pronotum in profile lower in prozona. Third abdominal tergite with 13 stridulatory ridges. Size smaller ( 41–46 mm ) ( Fig. 20 )........................................................................................... obliqua Females 1 Arc of pronotum in profile comparatively high........................... …………………………………………… 4 2 (3) Smaller size ( 42 mm ) ( Fig. 29 ).................................................................. intermedia 3 (2) Larger size ( 51–60 mm ) ( Fig. 31 )............................................................. membracioides 4 Arc of pronotum in profile comparatively low.............................................................. 1 5 (6) Pronotum narrow, slender ( Fig. 18 )................................................................. unicolor 6 Pronotum comparatively wide, robust..................................................................... 5 7 (8) Pronotum without dorsal callosities or with only traces of them ( Fig. 24 )................................... discolor 8 (7) Pronotum with dorsal callosities forming oblique whitish stripes............................................... 7 9 (10) Dorsum of pronotum with convex sides and comparatively low obtuse median carina ( Fig. 27 ).................. serrata 10 Dorsum of pronotum with slightly concave sides and sharp median carina........................................ 9 11 (12) General colouration, greenish. Sides of abdomen with four rows of small whitish, oblique spots ( Fig. 21 ).......... obliqua 12 (11) General colouration, pale brownish or green. Side of abdomen with two rows of large whitish spots or irregular form or uniform in colour ( Fig. 16 )........................................................................... boschimana