Bioacoustics of Endecous (Endecous) ubajarensis

Description, male holotype ( Figs. 1 , 3–11 ). Body color . Uniformly yellowish brown. Head . Pubescent; vertex, frons and gena uniformly light yellowish brown; short bristles between scapes ( Fig. 6 ); compound eyes black with a small dorsal depigmented spot; ocelli absent; clypeus lighter than labrum; first two maxillary palpomeres smaller than the others, third palpomere as long as fourth, fifth palpomere longer than fourth, arched and dilated on apex; second labial palpomere longer than the first and smaller than the claviform third one ( Fig. 6 ). Thorax. Pronotum, dorsal disc wider than longer, with long bristles on cephalic and caudal margin; lateral lobes rounded, without bristles (Figs. 3,4); Leg I: femur and tibia same size; tibia with an oval auditory tympanum at inner side, and two ventral apical spurs; first tarsomere serrulated twice longer than second and third together; Leg II, same size Leg I, tibia with two inner and two outer apical spurs, dorsal smaller; Leg III, femur dilated; tibia serrulated, three subapical spurs on inner and four on outer side ( Fig. 11 ), the distal one the smaller ( Figs. 9, 11 , arrow); four apical spurs at inner ( Fig. 10 ) and three at outer ( Fig. 9 ) side of the tibiae, the inner longer than outer; first tarsomere twice longer than second and third ones together, serrulated on distal half, with two apical spurs, the inner longer ( Fig. 11 ); right tegmina well sclerotized, covering the first three abdominal tergites; median fan reduced; harp with four cross-veins, second bifurcated; mirror with two well defined cross-veins, distal bifurcated; apical area reduced; lateral field with poor marked accessory veins ( Fig. 4 ); stridulatory file with 77 teeth. Abdomen. Cerci slender, light yellow; supranal plate rounded at apex, with lateral projections ( Fig. 7 ); subgenital plate with poor marked indentation ( Fig. 8 ). Measurements (mm) : body length 17.3; head width 3.04; intra-ocular distance 1.72; pronotum width 4.6; pronotum length 2.9; antenna length 91.6; hind femur length 13.1; hind tibia length 15.2; cerci length 16.67; right tegmina lateral field width 1.56; lateral field length 4.9; dorsal field width 4,16; dorsal field length 5.77; stridulatory file length 2.18; 35.3 teeth/mm. Observations in Paratypes . Phallic Sclerites ( Figs. 12–15 ). Pseudepiphallic arm short, bifurcated posteriorly ( Fig. 12 , Ps.Arm); dorsal branch of pseudepiphallic arm curved inward, with apex acuminate, slightly sinuous, and strongly sclerotized ( Figs. 12, 14, 15 , Ps.db); ventral branch of pseudepiphallic arm slightly flattened and curved inward, shorter and less sclerotized than dorsal one ( Figs. 12, 14, 15 , Ps.vb); Pseudepiphallic sclerite little sclerotized dorsally, reduced to a two inner bars ( Fig. 12 , Ps.ib) from which is projected a membranous shield outward ( Fig. 12 , Ps.ms); pseudepiphallic paramere lentiform, well developed, slightly surpassing apex of the pseudepiphallic arm ( Figs. 12−15 , Ps.P); ectophallic sclerite consists of a transversal arc ( Figs. 12−13 , Ect.Arc) with two lateral and digitiform bars projected posteriorly ( Figs. 12−13 , Ect.lb); each bar is connected posteriorly to pseudepiphallic paramere. From the median region of the ectophallic arc arise two digitiform projections ( Figs. 12−13, Ect.mp), with membranes connected to the posterior region of the endophallic sclerite forming a channel to spermatophore duct; ectophallic apodeme well developed ( Figs. 12−13 , Ect.Ap); endophallic sclerite well developed and sclerotized in anterior and posterior portions: anterior portion triangle-shaped and folded ( Fig. 13 , End.Sc.a), posterior sword shaped ( Fig. 13 , End.Sc.p). Male Right Tegmina. Distal mirror cross-vein may be uncompleted; four to five harp cross-vein; stridulatory file = 80.7 teeth ± 6.6 (76–90, n = 5). Female ( Fig. 2 ). Similar in color to holotype , larger in size; apterous; subgenital plate with median V-shaped indentation ( Fig. 16 ); supranal plate rounded at apex with two lateral projections ( Fig. 17 ); ovipositor swordshaped ( Figs. 18–21 ). Measurements. Male (mm, n = 5): body length 16.7 ± 0.74 (15.8–17.6); head width 3.3 ± 0.16 (3.1–3.5); intra-ocular distance 1.72 ± 0.04 (1.62–1.88); pronotum width 4.64 ± 0.13 (4.52–4.77); pronotum length 3.08 ± 0.13 (2.93–3.23); antenna length 80.4 ± 8.2 (74.6–86.2, n = 2); hind femur length 14.5 ± 0.57 (13.7–15.1); hind tibia length 16.2 ± 0.64 (15.1–17.2); cerci length 16.9 ± 1.15 (15.7–18.3, n = 4). Right tegmina (mm, n = 4): lateral field width 2.01 ± 0.14 (1.82–2.15); lateral field length 5.78 ± 0.14 (5.66–5.93); dorsal field width 4.25 ± 0.14 (4.1–4.4); dorsal field length 6.3 ± 0.07 (6.2–6.4); stridulatory file length 2.62 ± 0.22 (2.3–2.8); teeth per millimeter 31.01 ± 2.32 (28.1–33). Female (mm, n = 3): body length 22.6 ± 1.48 (21.1–24.1); head width 4.1 ± 0.08 (4.01–4.17); intra-ocular distance 2.19 ± 0.18 (2.1–2.4); pronotum width 5.75 ± 0.11 (5.66–5.88); pronotum length 3.91 ± 0.19 (3.7–4.07); antenna length 96.3 ± 8.5 (90.3–102.3); hind femur length 16.8 ± 0.21 (16.6–17); hind tibia length 18.4 ± 0.35 (18–18.6); ovipositor length 14.8 ± 0.63 (14.2–15.5. Chromosomes. Diploid chromosome number of 2n = 12 + X1X 2 ♂, and 2n = 12 + X1X1X2X2 ♀; five pairs of metacentric chromosomes, pair 1, ci = 46.6, carrying two heterochromatic bands at q-arm; pair 2, ci = 46.4; pair 4, ci = 44; pair 5, ic = 43.2; pair 6, ic = 43,7; pair 3 submetacentric, ic = 34,6; and sex chromosomes X1 and X2 , both metacentrics with ic = 45,4 (Fig. 22). Habitat . We collected on the same day adults male and female, as well as nymphs at different instars, found in the first two hundred meters inside the cave, an area with artificial light, and tourists access.