Bioacoustics of Ischyra (Ultraischyra) tucuruvi

Measurements (mm). Holotype : ( ♂ ): CC: 23,8; CTeg: 37,7; ATeg: 11,4; LF: 3,6; CD: 5; ALP: 6,4; CFA: 6,5; CTA: 8,2; CFM: 8,3; CTM: 9,1; CFP: 19,4; CTP: 21,6; Cplac: 3,5; Ccerc: 3,3. Paratype ( ♂ ): CC : 22,5–24,7; CTeg: 38,1–46,5; ATeg: 10,7–13,5; LF: 3,5–4; CD: 5,3–5,6; ALP: 5,9–6,7; CFA: 6,5–7,5; CTA: 7,6–9,3; CFM: 9,1–10,3 ; CTM: 9,6–11,2; CFP: 19,7–23; CTP: 21–24,8; Cplac: 3,3–4,1; Ccerc: 3,1–3,3. Species-group Anapolisia amazonica Mendes & Rafael sp. nov. Figures 19–73 Coments. Group formed by eight species of the Amazon rainforest biome. They are characterized by the elongated tegmina ( Fig. 20 ); expanded portion of hindfemur equivalent to 2/3 of femoral length ( Fig. 19H ); branches of the MP and MA veins not forked close to the tegmina margin ( Fig. 20 ). Left stridulatory file with curved basal half and straight apical half ( Fig. 21 ). Margins of tegmina and apex of the membranous wing with a narrow yellow band ( Fig. 24 ). Cercus slightly curved inwards, with the apex not expanded ( Figs. 19J–K ).

Description. Holotype Male. Thorax . Lateral lobe of pronotum anteriorly concave ( Fig. 13D ). Mesobasisternum triangular, anteriorly convex; lateral lobes anterolaterally convex, laterally and posteriorly straight, forming a posterolateral blunt tip ( Fig. 13E ). Metabasisternum triangular, anteriorly straight; lateral lobes anterolaterally convex, laterally and posteriorly concave ( Fig. 13E ). Wings. Branches of MP and MA veins not connected by transverse veins ( Fig. 14 ). Vein MA with four main branches reaching wing margin ( Fig. 14 ). Left stridulatory file with curved basal half and straight apical half. Total file length of 3.3 mm, greater vein width of 0.4 mm and total of 64 teeth. Rigth stridulatory file with curved basal half and straight apical half. Total length file of 2.6 mm, widest vein of 0.2 mm and total of 57 teeth. Teeth of basal half smaller and more spaced apart; apical half teeth larger and close together ( Figs. 15A–B ). Legs . Hind femur with expanded region equivalent to 2/3 of the total femur length ( Fig. 13H ). Abdomen . Cercus slightly curved inwards, with slender apical half ( Figs. 13I–J ). Apex of cercus with triangular projection, with dark brown color ( Fig. 13K ). Subgenital plate with apex bifurcated between the base of the stylus, with concave recess. Stylus small and rectangular ( Fig. 13I ). Internal male genitalia. Ejaculatory vesicles reniform ( Figs. 16A–D ). Upper folds of ventral lobe small and biloded ( Figs. 16A–B ). Titillator process round ( Figs. 16A–D ). Lower folds of ventral lobe large, bilobed and not exceeding the dorsal lobe ( Figs. 16A–B ). Dorsal lobes slightly curved; region between the ejaculatory vesicle with triangular projection ( Figs. 16A–D ). Dorsal folds small and narrow ( Figs. 16C–D ). Coloration . Based on photos of preserved specimens ( Fig. 13 ). General color of the body yellowish brown. Brown eyes. Tegmina with Cu and M branch region with small white circular spots. Female: Morphologically similar to the male, except by the following characteristics ( Figs. 17A–K ): Thorax . Mesobasisternum triangular, anteriorly straight; lateral lobes anterolaterally, laterally and posteriorly straight, forming a posterolateral curved blunt tip ( Fig. 17E ). Metabasisternum triangular, anteriorly convex; lateral lobes anterolaterally convex, laterally straight and posteriorly convex, posterolaterally forming an angle of 90° ( Fig. 17E ). Wings . Unaltered anal veins for sound production ( Fig. 17A ). Abdomen . Cercus slightly curved, apex acuminate ( Figs. 17H–J ). Subgenital plate triangular, apex rounded and stylus absent ( Fig. 17H ). Ovipositor curved; apex of ventral valve surpassing the apex of dorsal valve; ovipositor without teeth ( Fig. 17J ).