Bioacoustics of Paramacroxiphus securiformis

Figs. 10 , 26–28 , 38 , 60–62 , 74–75 , 95 Holotype (male): Indonesia : Papua , Dutch New Guinea, Maffin Bay , 12.vi.1944 , E.S. Ross . Holotype in Collection of Fer Willemse , Eygelshoven , Netherlands [later to be deposited in RMNH ] . Specimen examined ( Allotype ): 1 female , same data as holotype , 1.ix.1944 (CW). Description. Fastigium verticis: eye diameter 1.4: 2.1 mm ; projecting 0.8 mm in front of eyes. Femora with the following number of spines on ventral margins: profemur 7–9 external, 6–7 internal; mesofemur 7 external, 3–4 internal; postfemur 13–15 external, 15–18 internal. Male. Stridulatory file 3.11 mm long, slightly sinuate and with large teeth in basal half, curved in about middle and with narrow teeth in apical half ( Fig. 10 ); with about 117 teeth or 37.6 teeth per mm; in middle 35.9 teeth per mm, in basal half 20.4 teeth per mm. Mirror quadrate, apex substraight, 1.74 mm long and wide. Tenth abdominal tergite globular and with central area prolonged behind; prolongation furrowed in middle, setose and with sloping lateral areas; apex faintly sinuate ( Fig. 28 ). Epiproct triangular. Cerci slightly curved; with a large dorso-internal tooth behind middle, which has a very broad base and acute apex; behind that tooth, cercus dorso-ventrally compressed and curved mediad; apex broad with an acute spine at posterior angle and a rounded lobe at anterior angle ( Figs. 26–27 ). Subgenital plate greatly narrowed behind basal area into a long medial projection; projection with almost parallel margins, little converging in apical area, and with broad obtuse lateral carinae, divided from apex for slightly less than half of its length; styli small ( Fig. 38 ). Titillators separate, elongate, basal parts simple; apical parts subhyaline with broad brown band of stronger sclerotisation in midline; two-branched: lateral branch with narrow stiffened rim becoming conical at apex; apical branch with broad stiffened rim with little undulating margin and a short subapical cone ( Figs. 60–62 ). Apico-lateral sclerites small, rounded. Baso-lateral sclerites large, elongate with undulating margin. Female. Subgenital plate transverse, narrowly divided in midline; with a membranous apical lobe that terminates into two long, acute, stiffened spines; lateral areas strongly curved dorsal ( Figs. 74–75 ). Very base of ventral valves of ovipositor above lateral apices of subgenital plate with a rather large pit ( Fig. 75 ). Coloration. Uniformly ochre (formerly conserved in alcohol). Mandibles medium to dark brown; clypeus yellow. Female subgenital plate dark brown, apical prolongation light ochre. Ovipositor brown. Measurements: body male 29, female 38; pronotum male 10.3, female 10.7; tegmen male 38, female 47; postfemur male 23, female 26; ovipositor 52; -height 3.5 mm .