Bioacoustics of Hamayulus porangajuba

Description. Holotype Male. Head . Head big, broad and generally smooth, in frontal view ( Fig. 2B ); genal region marked by straight depression, in frontal view; fastigium-vertex small and dorsally compressed, in frontal view ( Fig. 2B ); Eyes small and globular ( Figs. 2A–B ). Mandibles slightly asymmetrical, with the right mandible larger; mandibles long, exceeding length of cephalic upper half, in frontal view ( Fig. 2B ); Clypeus and labrum very large, with labrum entirely covering mandibles distally, in frontal view ( Fig. 2B ). Thorax . Pronotal disc rectangular, without carina; anteriorly concave, laterally sinuous and posteriorly concave; margins of pronotal disc elevated, outlining its shape and giving it a saddle-like appearance, in lateral and dorsal views ( Figs. 2C–D ); Dorsolateral suture slightly curved, posteriorly reaching furcal suture and ventral margin of pronotum ( Figs. 2C–D ). Furcal suture curved and concolorous with pronotal disc ( Fig. 2C–D ). Mesobasisternum and metabasisternum triangular in shape, anteriorly concave and posteriorly narrowed, with short, subtriangular lateral lobes forming two small round projections. Wings . Tegmina extremely reduced, triangular, retaining only stridulatory file region; both right and left tegmina with stridulatory file ( Fig. 3 ). Left stridulatory file curved, with short, broad, and closely spaced teeth; teeth at apex and base smaller ( Fig. 4A ). Total length of left stridulatory file 1.8 mm; greater vein width 0.2 mm; total of 164 teeth ( Fig. 4A ). Right stridulatory file straight, with morphology similar to left file ( Fig. 4B ). Total length of file 1.1 mm; widest vein 0.1 mm; total of 127 teeth ( Figs. 4B ). Legs . All femora straight ( Fig. 2A ). Fore femur with five pairs of small ventral spines ( Fig. 2A ). Fore tibia straight, with apical region slightly curved; ventrally with five long pairs of straight spines, and dorsally with a single spine beyond tympanal area. Tympanal área expanded, with open tympana consisting of two elliptical cavities ( Fig. 2A ). Mid femur with five pairs of small ventral spines, in lateral view ( Fig. 2A ). Mid tibia straight, with five pairs of long ventral spines, and two isolated dorsal spines, one located near base of medial portion, and other at apical region, in lateral view ( Fig. 2A ). Hind femur elongated, narrow, and expanded at basal half, with several ventral spines increasing in size from base to apex ( Fig. 2A ). Hind tibia straight, narrow, with several small ventral and dorsal spines ( Fig. 2A ). All legs with short bristles; fore and mid femora with short, dark, thicker setae with rigid appearance ( Fig. 2A ). Abdomen . Cerci with basal half expanded and straight; apical half slender and curved inward, in dorsal and ventral view; in lateral view, apical half curved, with apex directed upward; cerci with several long bristles ( Figs. 2E –|G). Subgenital plate trapezoidal, laterally concave and posteriorly bilobed, with wide and V-shaped medial notch ( Fig. 2F ). Styli short and elliptical ( Fig. 2F ). Internal male genitalia. Not examined. Coloration. Described based on photographs of live specimen ( Fig. 5 ). General body coloration light green with dark green areas. Eyes purple, with yellowish margins. Palps bluish-green. Legs greenish-brown; leg spines light brown. Tegmina light brown, with stridulatory file region dark brown. Abdomen dorsally light green, with dark green spots; apical region of abdomen dorsally and ventrally yellowish, with bright yellow triangular dorsal spot on penultimate abdominal segment. Cerci dark brown, with light brown apices. Female: Unknown. Nymph. One older female nymph ( Fig. 6A–B ) and two younger male nymphs were found ( Fig. 6C ). All are very similar to adults, with slender bodies and very long legs, except that morphology of tegmina and terminalia are not developed. Eyes with color light purple and palps bluish-green; head and thorax light green; abdomen whitishgreen, with each abdominal segment bearing a pair of round yellow dorsal spots. Older female nymph with elongate, straight ovipositor with acuminate apex ( Fig. 6B ). Cerci with basal Half broad and apical half acuminate and narrow ( Fig. 6B ).