Bioacoustics of Taiyalia meridionalis

Description. The habitus typical of genus, green when alive, habitus robust, short-winged, metazona flat, tegmen broad and short ( Figs 2 , 3 ). Eyes relatively small, globular ( Figs 4A, 4B ). Frontal rostrum conical, stout, with rounded apex of upper tubercle having median sulcus feebly present ( Fig. 4B ). Apical segment of maxillary palpus barely longer than subapical (fourth) segment, slender and bulbous apically; fourth segment slightly widened apically, slightly longer than third segment ( Fig. 4C ). Frons broad ( Fig. 4D ). Pronotum covering basal part of tegminal mirror ( Fig. 4A ). Pronotal disc roundly turned into lateral lobes, transverse sulcus distinct; prozona slightly shorter than metazona, straight in profile; metazona slightly raised, faintly curved in profile; anterior and posterior margins broadly rounded ( Fig. 4A ). Pronotal lateral lobe with ventral margin short and almost straight; thereafter raised oblique ( Fig. 4B ). Thoracic auditory spiracle (= thoracic foramen) small, slender and pyriform; not covered by pronotal lateral lobe ( Fig. 4B ). Tegmen rather broad, tapering obliquely into narrow apex, slightly surpassing abdominal apex ( Fig. 3A ). Hind wing not surpassing tegminal apices ( Fig. 3A ). Fore coxa with spine straight and apex rounded ( Fig. 4D ). Fore tibia with inner ( Fig. 4E ) and outer ( Fig. 4F ) tympana open, oblong. Femora without spine; fore tibiae each with 4 outer and 3 inner subapical spines; middle tibiae each with 4 outer and 4 inner subapical spines; inner and outer knees of hind femora with triangular lobes not spine-like but having subacute apices; hind tibiae ventrally and dorsally with numerous outer and inner spines, as well as 2 ventral and 1 dorsal apical spur on each side. Male. Stridulatory area of left and right as shown in Figs 4G and 4H , respectively. Stridulatory file on left tegmen strongly curved, 1.4 mm in length, made up of ca. 101 small and stout teeth; teeth at both ends more closely packed ( Fig. 4I ). Tenth abdominal tergite with posterior margin at middle emarginated; emargination angular, broad and not deep ( Fig. 5A ). Cercus stout, slightly longer than tenth abdominal tergite; at basal third bent dorso-posteriorly; apex obtusely rounded and very faintly curved inward; along inner margin before midpoint with process slightly hooked and having apex acute ( Fig. 5 ). Subgenital plate in ventral view basal half broad, then strongly narrowed into apical half, apical half tongue-shaped with apex somewhat truncated and having numerous fine setae; in lateral view with apical half slightly swollen at apex; at middle with three ventral lobes; basal ventral lobe ( bl ) tongue shaped and having long fine setae, in ventral view oval and in lateral view nipple-shaped; latero-ventral lobes ( ll ) posterior of basal ventral lobe; flattened, with ventral margin having dentated setae ( Fig. 5 ). Titillators ( ti ) having a pair of sclerotized thin and somewhat flattened rods ( Figs 5B–E ). Female. Unknown. Coloration. Generally green when alive ( Fig. 2 ). Head dorsum, including fastigium, antennal scapus and pedicel green; behind eyes with longitudinal band cream colored and continuing with pronotal band. Antennae yellow brown. Eyes generally pale red. Pronotum green, disc along lateral and posterior inner margins with broad brown band, its lateral lobe along dorsal margin with white/ cream-colored band along brown band of dorsal disc ( Fig. 4B ). Tegmen with veins and cross-veins cream colored; stridulatory area also cream colored with tint of brown, with a dark-brown spot posterior of mirror area; along anal margin cream colored. Legs generally green. Spines on legs unicolorous as rest of body, except spines on hind tibia black; tympanal region and knees (especially so for fore and hind legs) dark. Measurements. BL = 10.8; PL = 5.8; PW = 2.8; TL = 11.6; HFL = 8.6; HTL = 9.2.