Bioacoustics of Luzara brevipennis

Description. In addition to the characters of the genus: Size medium. TI with only a small inner tympanum (no outer tympanum). TIII inner serrulation: no spine before spur 1, 5–7 spines in males (mean 6), 4–5 spines in females (mean 4.4) between spurs 1 and 2, 6–8 spines in males (mean 7), 5–8 spines in females (mean 6.3) between spurs 2 and 3, 4–8 spines in males (mean 5.7), 4–7 spines in females (mean 5.3) between spurs 3 and 4, 11–13 spines in males (mean 12), 8–13 spines in females (mean 10) above spur 4; outer serrulation: no spine before spur 1, 4 spines in males (mean 4), 3–6 in females (mean 3.9) between spurs 1 and 2, 4–7 spines (males, mean 5), 5–6 spines in females (mean 5.3) between spurs 2 and 3, 3–5 spines in males (mean 4), 4–5 spines in females (mean 4.8) between spurs 3 and 4, 7–12 spines in males (mean 9.3), 7–11 spines in females (mean 8.9) above spur 4. Basitarsomeres III with 6–7 in males (mean 6.5) and 5–8 in females (mean 6) inner dorsal spine, and 6–7 in males (mean 6.5) and 5–8 in females (mean 6.1) outer dorsal spines, in addition to apical spines. Coloration. Head dark brown (lighter in females), except for light yellow inner margin of the eyes (often prolonged as a short longitudinal line) and ocelli, yellow and light brown scapes and basal part of antennae; palpi light yellow, somewhat darker laterally. Pronotum dark brown, somewhat lighter dorsally; DD anterior margin and two small dots close to anterior margin (and a thin longitudinal line in females) yellowish. Legs light ochre, TIII darker; femora with a lighter predistal ring, and a darker distal ring; TI and TII lighter with 4 brown rings; TIII with a small yellow dot above serrulation; subapical spurs brown basally, yellow distal with brown apex. FWs dark brown, the file and veins of the lateral field lighter in males, the lateral field lighter in females. Abdomen brown, the tergites lighter in distal half, darker basally with 3 yellow dots on each side in laterodorsal position (often lighter in females). Cerci brown, somewhat lighter distally. Male. FWs not reaching half tergite 2 ( Figs. 3 A, B). Venation very reduced on corneous right FW, only the stridulatory file clear; left FW soft dorsally, within the course of CuA. Right stridulatory file with 26 teeth (n=1); teeth small, high and largely separate from one another. Lateral field with 3–4 longitudinal veins. Male genitalia. Similar to that of the other species of the genus, but pseudepiphallic arms bifid twice, first far from apex, second close to apex, the longest hook dorsal ( Fig. 4 A). Female. Coloration often more contrasted than in males. FWs very short, about as long as half pronotum; dorsal distal margin almost straight ( Figs. 3 C, 4B). Venation lacking on dorsal field, reduced to 3–4 longitudinal parallel veins in lateral field, often irregularly bifurcated ( Fig. 4 C). Subgenital plate small; distal margin concave. Ovipositor short, much shorter than FIII; apex acute. Female genitalia. Copulatory papilla long, cylindrical and sclerotized with soft apex ( Fig. 4 D–F). Measurements. Lpron wpron LFW LFIII LTIII File Holotype 3.4 4.5 2.8 11.4 10.1 - Paratype 3.4 4.5 3.1 12.5 11.3 26 mean (n=2) 3.4 4.5 3 12 10.7 Lpron wpron LFW LFIII LTIII Lovip Allotype 4.1 5.3 2.4 13.7 11.7 10.6 Paratypes 3.7–4.1 4.9–5.3 2.1–2.7 12.9–13.4 10.9–11.3 9–10.2 mean (n=5) 3.9 5.1 2.4 13.3 11.2 9.8