Bioacoustics of Marthogryllacris jinpingensis

Figures 2–3 Description. Male. Body large. Frons smooth with impressed dots ( Fig. 2A ). Fastigium verticis slightly wider than scape, the lateral margins raised. Ocelli distinct. Pronotum projected faintly projecting in the median of anterior margin, posterior margin truncate ( Fig. 2C ); lateral lobes longer than deep ( Fig. 2D ). Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces; hind femora with 15–16 internal and 6–11 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; hind tibiae with 4–6 internal and 5–6 external spines on dorsal surface, apices with 1 pair of dorsal spurs, 1 pair of subapical ventral spurs and 2 pairs of ventral spurs. Tegmina developed, obviously surpassing the apex of abdomen, and reaching the apices of hind tibiae. Second and third abdominal tergites without stridulatory pegs ( Fig. 2E ). Eighth abdominal tergite prolonged backwards and ventrad. Ninth abdominal tergite split along the midline, on both sides swollen, ventro-apical angle produced into a short, stout, and incurved spine gradually narrowing to acute tip, apices curved, in situ spines crossing each other ( Fig. 2F ). Subgenital plate broader than long, basal margin nearly straight, posterior margin arched ( Fig. 2F ). Styli cylindrical, upcurved, longer than subgenital plate, inserted at apico-lateral angles of the plate. Female. Seventh abdominal sternite densely setose. Subgenital plate longer than wide, basal margin straight with 1 pair of copulatory depressions, lateral margins narrowing with middle area contracted ( Fig. 3H, I ), apical half narrowly rounded, posterior margin almost straight. Ovipositor elongate, faintly upcurved, tip subacute ( Fig. 3G ). Coloration. Body yellowish brown. Frons purple. Eyes, genae and labrum black. Ocelli yellowish. Margins of pronotum black, disc with black patterns as Figs. 2C and 3B . Dorsal spines of hind black. Measurements (mm). Male: BL 29.6–34.6, PL 7.5–8.7, TL 25.9–41.6, HFL 19.4–21.2; Female: BL 34.5–37.1, PL 8.3–8.8, TL 40.5–40.9, HFL 20.7–22.8, OvL 19.3–22.2.