Parableta (Parableta) nikolaii, Gorochov, 2018

Parableta (Parableta) nikolaii View in CoL sp. nov.

( Figs 281–284 View Figs 276–289 , 297–303 View Figs 290–310 , 313, 314 View Figs 311–330 )

Etymology. This species is named after Nikolai Leon Fernandez ( Peru) who helped me a lot during the Peruvian field work in 2017.

Type material. Holotype – male, PERU: Junin Department, Satipo Prov. , Rio Tambo Distr. , 6 km N of Pichiguia Vill., protected area “Reserva Comunal Ashaninka”, 11.358244°S, 74.0320473°W, ~ 500 m, primary forest, at light, 14–23 November 2017, A. Gorochov, G. Irisov GoogleMaps . Paratypes: 9 males, same data as for holotype GoogleMaps ; 1 male, 1 female, same province, ~ 25 km SE of Satipo Town , environs of Rio Venado Vill. , 11.11552°S, 74.46307°W, 1000–1200 m, primary/secondary forest, at light, 20–23 October 2008, A.Gorochov, M. Berezin, L. Anisyutkin, E. Tkatsheva, V. Izerskyy GoogleMaps ; 1 male, PERU: bank of Rio Morona near its mouth and not far from Puerto America Town , ~ 200 m, primary forest, at light, 20–23 January 2010, A. Gorochov ; 1 male, ECUADOR, Morona Santiago Prov., bank of Rio Morona near border with Peru, environs of Puerto Morona Vill. , ~ 300 m, primary forest, at light, 5–15 January 2010, A. Gorochov ; 1 male, 1 female, “ Alto-Amaz. ” [ PERU?], determined as “ Plagiopleura ” (male) and “ Parableta integricauda Br. ” (female) .

Description. Male (holotype). General appearance similar to that of holotype of P. cercata sp. nov. but with following differences: upper rostral tubercle with barely notched (barely bilobate) apex; pronotum with a pair of whitish lines along lateral edges of disc; tegmina with lateral field yellowish (greenish in living condition) but having three small greyish brown spots along median line between Sc and anal tegminal edge (such colouration more similar to that of some paratypes of P. cercata sp. nov.) ( Fig. 281 View Figs 276–289 ) and with stridulatory apparatus as in Figs 283, 284 View Figs 276–289 (stridulatory vein of left tegmen clearly narrower than that of P. cercata ; see Figs 279 and 283 View Figs 276–289 ); fore tibia without darkened marks; such marks on tarsi almost indistinct; dorsal parts of abdominal tergites rose; distal (directed partly downwards) portion of cercus distinctly shorter ( Figs 297, 298, 300, 301 View Figs 290–310 ), slightly S-shaped dorsally ( Fig. 301 View Figs 290–310 ) and having apical hook somewhat thinner (medial edge of cercus also with very small subapical denticle; Fig. 302 View Figs 290–310 ); genitalia somewhat smaller than in P. cercata sp. nov. but almost indistinguishable from those of this species in structure ( Fig. 303 View Figs 290–310 ).

Variations. Whitish lines on head and pronotum often indistinct; two males from “Reserva Comunal Ashaninka” with somewhat different spots on tegminal lateral field (one male with these spots almost as in holotype of P. cercata sp. nov., but second male with two large light brownish rose spots having darker borders); male from environs of Rio Venado Vill. almost without rose areas on abdominal tergites; males from environs of Rio Morona with apical part of upper rostral tubercle narrowly rounded (not barely widened and not more or less truncated; possibly another subspecies) .

Female. Colouration and external structure of body similar to those of males, but whitish lines developed on head dorsum and absent on pronotum, lateral tegminal field in female from “Reserva Comunal Ashaninka” with three large whitish spots (having rather numerous greyish brown dots; Fig. 282 View Figs 276–289 ) and in female from “Alto-Amaz.” without spots, dorsal tegminal field and abdominal apex almost as in female of P. cercata sp. nov. (but genital plate with somewhat wider apex, and ovipositor slightly longer; Figs 313, 314 View Figs 311–330 ).

Length (mm). Body: male 20.0–24.0, female 21.0; body with wings: male 43.0–47.0, female 48.0; pronotum: male 5.1–5.6, female 5.4; tegmina: male 33.0–37.0, female 38.5; hind femora: male 19.0–23.0, female 23.0; ovipositor 9.0.

Comparison. The new species is distinguished from P. cercata sp. nov. by the characters mentioned above (especially by the shorter distal portion of male cerci and distinctly narrower stridulatory vein in the left tegmen); from P. kempfi , by the shorter distal portion of male cerci not widened in its proximal part; from P. tapirapes , by the tegmina less widened in the middle part (their anal edge is almost straight, but not slightly arcuate); from P. integricauda , probably by the same tegminal character as P. cercata sp. nov. and presence of a dark longitudinal stripe on the outer side of hind tibia; from P. soror and P. areolata , by the ovipositor lacking denticles; and from P. boliviana , in the stridulatory vein of left male tegmen clearly longer, and male cercus with its distal portion flattened (dorsally concave) but not cylindrical.