Parableta, Brunner-Wattenwyl, 1878

Gorochov, A. V., 2018, Systematics of the American Katydids (Orthoptera: Tettigoniidae). Communication 8, Proceedings of the Zoological Institute of the Russian Academy of Sciences 322 (4), pp. 398-456 : 451

Parableta (? Parableta ) denticulata sp. nov.

( Figs 289 , 317, 318 )

Etymology. This species name is the Latin word “denticulata” (denticulate, with denticles) in connection with the ovipositor structure.

Material studied. Holotype – female, BOLIVIA: Santa Cruz Prov., 23 km SW of Santa Cruz City, El Sol Natural Park (small private park), ~ 600 m, primary/secondary forest, on leaf of bush at night, 14–16 February 2014, A. Gorochov.

Description. Female ( holotype). Body colouration yellowish with greenish tinge (in living condition, body greenish) and following marks: eyes with brownish posterior parts; lateral ocelli light rose; dorsum of head with a pair of longitudinal whitish lines behind eyes; tegmina with three rather small whitish spots along lateral (anterior) branch of MP+CuA1 (these spots partly bordered by brown dots, and left tegmen with additional similar spot near base of RS; Fig. 289 ); legs with fore tibia having two short and narrow brownish stripes along distal part of outer ventral keel, with hind tibia having poorly distinct traces of similar stripes on outer surface near bases of spines; abdomen with light rose median areas on fourth, fifth and sixth tergites. Structure of body similar to that of females of previous congeners described above, but upper rostral tubercle as in P. boliviana , tegmina clearly wider in middle part (especially in region between branches of MP+CuA1; Fig. 289 ), genital plate with almost rounded apex ( Fig. 317 ), and ovipositor having acute apex and numerous small (but distinct and acute) denticles along dorsal and ventral edges ( Fig. 318 ).

Male unknown.

Length (mm). Body 26.0; body with wings 49.0; pronotum 5.9; tegmina 38.0; hind femora 24.0; ovipositor 10.8.

Comparison. The new species is more or less similar to P. soror and P. areolata in the ovipositor denticulated, but it is distinguished from them by the tegmina wider (from P. soror ), or by the tegminal region between MP+CuA1 branches slightly wider than the space between Sc and MP+CuA 1 in the tegminal middle (from P. areolata which has this region distinctly wider than this space). From P. kempfi and P. tapirapes , known only from males, the new species differs in the tegmina wider (from P. kempfi ), or in the tegminal costal edge clearly more convex (from P. tapirapes ); from all the other representatives of Parableta s. str., in the ovipositor denticulated; and from the other congeners, in the secondary branches of lateral (anterior) branch of MP+CuA1 clearly sparser (from type species of Stylibleta subgen nov.), or in the costal third of tegminal lateral field not darkened (from type species of Oscarbleta subgen nov.).

Figures

Figs 276–289. Parableta Br.-W.: 276–280 – P. (Parableta) cercata sp. nov.; 281–284 – P. (P.) nikolaii sp. nov.; 285–288 – P. (P.)?boliviana Bruner; 289 – P. (?P.) denticulata sp. nov. Head with pronotum from side (276); male (277, 281, 285) and female (278, 282, 286, 289) left tegmina; stridulatory apparatus of left (279, 283, 287) and right (280, 284, 288) male tegmina.

Figs 311–330. Parableta Br.-W. and Chloroscirtus Sauss. et Pict.: 311, 312 – P. (Parableta) cercata sp. nov.; 313, 314 – P. (P.) nikolaii sp. nov.; 315, 316 – P. (P.)?boliviana Bruner; 317, 318 – P. (?P.) denticulata sp. nov.; 319–328 – Ch. columbianus sp. nov.; 329, 330 – Ch. discocercus Rehn [after Rehn (1918), modified]. Female genital plate from below (311, 313, 315, 317); ovipositor from side (312, 314, 316, 318); stridulatory apparatus of left (319) and right (320) male tegmina; male abdominal apex from below (321), from above (322) and from side (323); apical part of right male cercus from side (324), from side/above (325), from side/above/behind (326) and from behind but slightly from different positions (327, 328, 329); male genital plate from below (330).