Bioacoustics of Ligocatinus paraguay

Description. Male ( holotype ). Body medium-sized, yellowish (greenish in living condition) with rose eyes, dark rose dorsal longitudinal spot on upper rostral tubercle, light brown stripe on each lateral pronotal lobe along dorsal edge (this stripe shortly interrupted almost in middle part; Fig. 223 ), light brown medial part of dorsal field in right (lower) tegmen, semitransparent some areas in dorsal fields of both tegmina ( Figs 224, 225 ), mainly transparent hind wings (except for small yellowish distal portion of costal part), dark brown distal parts of majority of spines, spinules and denticles on legs, and light brown dorsal part of ninth abdominal tergite having brown to dark brown teeth on posterior lobes ( Figs 226–229 ). Upper rostral tubercle not projected before lower rostral tubercle, having short dorsomedian groove, narrowing to rounded and barely inflated apical part (scape almost twice as wide as this part); this apical part with slightly flattened anterior surface and in contact with apex of lower rostral tubercle (apical part of latter tubercle somewhat narrower than apical part of previous tubercle) ( Figs 223, 224 ). Pronotum almost carinate along lateral edges of disc; anterior and posterior edges of disc straight and clearly convex, respectively ( Fig. 224 ); lateral pronotal lobes as in Fig. 223 . Wings long (hind wings somewhat longer than tegmina); tegmina narrow, with normal RS (having two branches in distal half), two branches on RA and stridulatory apparatus as in Figs 224 and 225 ; legs with both tympana oval (opened), with several small denticles on both ventral keels of hind femur, without denticles on these keels of other femora, with a few spinules on both ventral keels of all tibiae, as well as with rather numerous short spines on both dorsal keels of hind tibia. Ninth abdominal tergite somewhat longer than other abdominal tergites, with a pair of elongate lobes having characteristic teeth on their apical parts (teeth of left and right lobes slightly asymmetrical; Figs 226, 228, 229 ); notch between these lobes rather large but somewhat wider than deep (Figs 129, 226); tenth abdominal tergite with rather small posteromedian lobe (this lobe distinctly wider than long and somewhat roundly bilobate; Fig. 129); epiproct located under latter lobe, small, longitudinally oval and directed downwards; cercus rather long and moderately thin, arcuately curved in distal half, with thinner apex having two small denticles ( Fig. 230 ); genital plate slightly wider than long, narrowing to rather narrow apex having a pair of short posterior lobules (with small but elongate styles) and shallow (somewhat wider than deep) notch between them (Figs 129, 227). Female unknown. Length (mm). Body 17.5; body with wings 33.0; pronotum 3.8; tegmina 25.0; hind femora 17.0. Comparison. This species is distinguished from L. spinatus ( Argentina : Buenos Aires ) by the posterior lobes of ninth male abdominal tergite clearly longer, notch between them distinctly deeper and probably narrower, posterior lobe of tenth male abdominal tergite somewhat less projected behind last tergite, and male genital plate with the apical part narrower and having less wide posteromedian notch and longer styles (see Figs 129 and 130).