Bioacoustics of Anelytra (Anelytra) siquijor

Description. Habitus as shown in Fig. 7 . Similar to Anelytra ( Anelytra ) melanopa sp. nov. : Fastigium verticis similarly shaped ( Figs 2D, 2E ). Frons subrugose, with very few faintly impressed dots ( Fig. 2F ). Maxillary palpi slender and elongated, segments subequal length, with apical segment longest and apex roundly bulbous. Pronotum generally smooth with very fine short setae; anterior margin truncated, at middle slightly indented; posterior margin faintly concave ( Fig. 2D ). Paranota similarly shaped ( Fig. 2E ).Anterior part of mesopleurae with conchate projection behind auditory spiracle ( Fig. 2E ). Prosternum without processes ( Fig. 4G ). Mesosternal and metasternal lobes similarly shaped ( Fig. 4G ). Both tympana on anterior tibia slightly swollen with narrow slit ( Fig. 2F ). Anterior coxa with triangular spinule on dorsal margin, spinule curved ( Fig. 2D ). Femora with the following number of spines on ventral margins: anterior femur 4–5 external, 3–4 internal, external spines larger than internal; middle femur 5–6 external, 0 internal; posterior femur 12 external, 0 internal. Tibiae with the following number of spines on ventral margins: anterior tibia 6 external, 6 internal; middle tibia 7 external, 0 internal. Male. Tegmen highly reduced; dorsal field about 1.1 as long as wide; mirror area barely covered by pronotal disc, barely reaching abdominal tergite, with apex truncated ( Figs 3C , 7 ); hind wing rudimentary, concealed under tegmen ( Figs 2D, 2E ). Mirror on left tegmen small, rhomboid, about 1.2 as wide as long ( Fig. 3C ). Stridulatory file on underside of left tegmen faintly curved about 1.9 mm long; with about 141 teeth fairly regularly and densely spaced throughout ( Fig. 3D ). Tenth abdominal tergite at posterior prolonged behind, producing two posteromedian lobes, lobe tongue-shaped, margin between lobes broadly deeply emarginated with anterior end angular ( Figs 4H– J ). Epiproct triangular with apex rounded, concealed under tenth abdominal tergite ( Figs 4H, 4I ). Cercus basally cylindrical, with baso-internal projection spinose with apex acute; after basal third curved inwards and dorsally towards apex and dorso-ventrally lamellate, tapering into obtuse apex, at apex having small acute spinule ( Figs 4H– L ). Subgenital plate with anterior half broad, posterior half with faintly converging lateral margins, apical margin triangularly and deeply emarginated ( Fig. 4L ). Styli stout, with apex rounded ( Fig. 4L ). Titillators ( Figs 5E–H ) very similar to Anelytra ( Anelytra ) melanopa sp. nov. , differ slightly by apical parts less distinctly bent. Female. Unknown. Colouration. Head dorsum yellow brown with green veins, with fastigium verticis dark apically ( Figs 2D , 7 ). Scapus and pedicel black; antennae dark brown with pale rings ( Figs 2D–F ). Frons dark red brown, mandible dark red brown, clypeus and labrum cream coloured ( Fig. 2F ). Maxillary palpi with segments cream coloured ( Fig. 2F ). Gena brown ( Fig. 2E ). Pronotum yellow brown; dorsal disc with longitudinal band green with undefined margins, forming spot on anterior and posterior ends; anterior half with green pattern that continues into paranota ( Figs 2D, 2E ). Tegmen generally with veins cream coloured and cells black or dark brown ( Figs 3C , 7 ). Spine on anterior coxa orange ( Fig. 2D ). Legs generally yellow brown, ventral spines with apex black ( Fig. 7 ). Anterior tibia with black ring distal of tympana, distal half dirty green ( Fig. 2F ); middle and posterior tibiae dorsally with green band ( Fig. 7 ). Tarsi generally pale coloured with tint of green and black markings. Tergites yellow brown, with longitudinal black stripe ( Fig. 7 ); sternites pale orange ( Fig. 4G ). Tenth abdominal tergite, epiproct, cercus, and subgenital plate generally yellow brown to orange brown ( Figs 4H–L ). Measurements. See Table 1 .