Bioacoustics of Paramacroxiphus elongatus

Figs. 14 , 31 , 35 , 48 , 55 , 95 Holotype (male): Indonesia : Papua , North New Guinea Exped., Mamberamo , Alb-Bivak , V.1926 , W. Docters v. Leeuwen , labelled: " Pseudonicsara ? elongata sp. n. " . Holotype in Museum Zoologicum Bogoriense [Cibinong], Indonesia . Description. Fastigium verticis: eye length = 1.5: 2.3 mm ; projecting 0.9 mm in front of eyes. Tegmen with anterior margin sinuate: narrowing behind middle, then slightly widening and narrowing again towards apex. Femora with the following number of spines on ventral margins: profemur 7–8 external, 6 internal; mesofemur 6 external, 3–4 internal; postfemur 11 external, 13 internal. Male. Stridulatory file sinuate, circa 3.26 mm long; teeth large near base, small and dense near apex ( Fig. 14 ); with about 127 teeth or 39.0 teeth per mm; in middle with 31.5 teeth per mm; in basal half with 21.0 teeth per mm. Tenth abdominal tergite with dorsal surface faintly convex in basal area; apical margin prolonged into two triangular lobes, deeply fissing in between; internal apex of triangular lobes slightly curved medioventrad; fissing area, lobes and apex densely setose ( Fig. 31 ). Cerci subcylindrical but ventro-internal surface flattened; dorso-internal margin sub-carinate, prolonged towards apex into a broad-triangular, acute, dorsointernal lobe; apical area bent mediad, compress and at apex divided into a rounded proximal and an acute distal lobe ( Fig. 31 ). Subgenital plate with lateral areas sloping in basal part only; with a faint medial and rounded lateral carinae; central part of subgenital plate with lateral carinae largely prolonged behind and fissing from apex for somewhat less than half the length of the prolongation; styli small ( Fig. 35 ). Titillators with basal parts simple; apical parts divided into two branches forming semi-membranous sheaths with irregular margins; apico-internal surface with fine striation; marginal parts of lobes darkened and more strongly sclerotised; rim of distal lobe finely crenulated; latero-proximal surface membranous and connected at base with a small, ovoid, membranous sacculus; sheaths of both sides fused medial in basal area ( Figs. 48 , 55 ). Membrane of latero-proximal surface with 2 small, transverse, crenulated lobes. Baso-lateral sclerites large, elongate, tri-carinate. Female unknown. Coloration. Brown. Frons with antennal scrobae and mandibles darkened; labrum yellow in central area. Pronotum with a little distinct dark band in dorsal area of paranota. Femora indistinctly mottled with dark and pale areas; meso- and postfemur also with 2 little distinct pre-genicular dark rings. Tegmen maculated, darkened at apex; dorsal area pale. Measurements of male: body 33; pronotum 10; tegmen 39; postfemur 23 mm .